113121310012 has 24 divisors (see below), whose sum is σ = 205006404960. Its totient is φ = 54552200640.

The previous prime is 113121310009. The next prime is 113121310039. The reversal of 113121310012 is 210013121311.

It is a happy number.

It is a super-2 number, since 2×113121310012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409008 + ... + 627319.

It is an arithmetic number, because the mean of its divisors is an integer number (8541933540).

Almost surely, 2^113121310012 is an apocalyptic number.

It is an amenable number.

113121310012 is a deficient number, since it is larger than the sum of its proper divisors (91885094948).

113121310012 is a wasteful number, since it uses less digits than its factorization.

113121310012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037301 (or 1037299 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 113121310012 its reverse (210013121311), we get a palindrome (323134431323).

The spelling of 113121310012 in words is "one hundred thirteen billion, one hundred twenty-one million, three hundred ten thousand, twelve".