113031321010121 has 4 divisors (see below), whose sum is σ = 113031343989012. Its totient is φ = 113031298031232.

The previous prime is 113031321010103. The next prime is 113031321010123. The reversal of 113031321010121 is 121010123130311.

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 75247383975625 + 37783937034496 = 8674525^2 + 6146864^2 .

It is a cyclic number.

It is not a de Polignac number, because 113031321010121 - 2¹⁰ = 113031321009097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113031321010093 and 113031321010102.

It is not an unprimeable number, because it can be changed into a prime (113031321010123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 789500 + ... + 15056093.

It is an arithmetic number, because the mean of its divisors is an integer number (28257835997253).

Almost surely, 2^{113031321010121} is an apocalyptic number.

It is an amenable number.

113031321010121 is a deficient number, since it is larger than the sum of its proper divisors (22978891).

113031321010121 is an equidigital number, since it uses as much as digits as its factorization.

113031321010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22978890.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 113031321010121 its reverse (121010123130311), we get a palindrome (234041444140432).

The spelling of 113031321010121 in words is "one hundred thirteen trillion, thirty-one billion, three hundred twenty-one million, ten thousand, one hundred twenty-one".