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124221223103131 = 71110115972897403
BaseRepresentation
bin11100001111101010000001…
…111000000110101010011011
3121021211102200121202202200201
4130033222001320012222123
5112240220031103300011
61120110235253443031
735110454465431450
oct3417520170065233
9537742617682621
10124221223103131
1136642a1a001530
1211b22aa4340477
13544101b44235b
1422964a6d9b827
15e5642bda1cc1
hex70fa81e06a9b

124221223103131 has 16 divisors (see below), whose sum is σ = 156406611379968. Its totient is φ = 95837384412000.

The previous prime is 124221223103059. The next prime is 124221223103137. The reversal of 124221223103131 is 131301322122421.

It is a happy number.

It is not a de Polignac number, because 124221223103131 - 211 = 124221223101083 is a prime.

It is a super-2 number, since 2×1242212231031312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 124221223103131.

It is not an unprimeable number, because it can be changed into a prime (124221223103137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7986440925 + ... + 7986456478.

It is an arithmetic number, because the mean of its divisors is an integer number (9775413211248).

Almost surely, 2124221223103131 is an apocalyptic number.

124221223103131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

124221223103131 is a deficient number, since it is larger than the sum of its proper divisors (32185388276837).

124221223103131 is a wasteful number, since it uses less digits than its factorization.

124221223103131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15972897522.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 124221223103131 its reverse (131301322122421), we get a palindrome (255522545225552).

The spelling of 124221223103131 in words is "one hundred twenty-four trillion, two hundred twenty-one billion, two hundred twenty-three million, one hundred three thousand, one hundred thirty-one".

Divisors: 1 7 11 77 101 707 1111 7777 15972897403 111810281821 175701871433 1229913100031 1613262637703 11292838463921 17745889014733 124221223103131