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124241220031 = 185416700891
BaseRepresentation
bin111001110110101011…
…0101001000110111111
3102212200120202220121211
41303231112221012333
54013421223020111
6133024200305251
711655545642245
oct1635526510677
9385616686554
10124241220031
1148765a25545
12200b4172227
13b93ca96016
14602872c795
1533724c8521
hex1ced5a91bf

124241220031 has 4 divisors (see below), whose sum is σ = 124247939464. Its totient is φ = 124234500600.

The previous prime is 124241220023. The next prime is 124241220041. The reversal of 124241220031 is 130022142421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 124241220031 - 23 = 124241220023 is a prime.

It is a super-2 number, since 2×1242412200312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124241219984 and 124241220011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124241220041) 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 3 ways as a sum of consecutive naturals, for example, 3331905 + ... + 3368986.

It is an arithmetic number, because the mean of its divisors is an integer number (31061984866).

Almost surely, 2124241220031 is an apocalyptic number.

124241220031 is a deficient number, since it is larger than the sum of its proper divisors (6719433).

124241220031 is an equidigital number, since it uses as much as digits as its factorization.

124241220031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6719432.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 124241220031 its reverse (130022142421), we get a palindrome (254263362452).

The spelling of 124241220031 in words is "one hundred twenty-four billion, two hundred forty-one million, two hundred twenty thousand, thirty-one".

Divisors: 1 18541 6700891 124241220031