Search a number
-
+
101333112121 = 318131855741
BaseRepresentation
bin101111001011111101…
…1001001010100111001
3100200120002010110021201
41132113323021110321
53130012234041441
6114315104134201
710215062145523
oct1362773112471
9320502113251
10101333112121
1139a7a999a5a
1217780307361
13972ba6c097
144c94120a13
1529812bac31
hex1797ec9539

101333112121 has 4 divisors (see below), whose sum is σ = 101364971044. Its totient is φ = 101301253200.

The previous prime is 101333112119. The next prime is 101333112137. The reversal of 101333112121 is 121211333101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 55509716025 + 45823396096 = 235605^2 + 214064^2 .

It is a cyclic number.

It is not a de Polignac number, because 101333112121 - 21 = 101333112119 is a prime.

It is a super-2 number, since 2×1013331121212 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101333112191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15924690 + ... + 15931051.

It is an arithmetic number, because the mean of its divisors is an integer number (25341242761).

Almost surely, 2101333112121 is an apocalyptic number.

It is an amenable number.

101333112121 is a deficient number, since it is larger than the sum of its proper divisors (31858923).

101333112121 is an equidigital number, since it uses as much as digits as its factorization.

101333112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31858922.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 101333112121 its reverse (121211333101), we get a palindrome (222544445222).

The spelling of 101333112121 in words is "one hundred one billion, three hundred thirty-three million, one hundred twelve thousand, one hundred twenty-one".

Divisors: 1 3181 31855741 101333112121