113311102021 has 16 divisors (see below), whose sum is σ = 124010944624. Its totient is φ = 102901860864.

The previous prime is 113311102007. The next prime is 113311102033. The reversal of 113311102021 is 120201113311.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 11106208996 + 102204893025 = 105386^2 + 319695^2 .

It is a cyclic number.

It is not a de Polignac number, because 113311102021 - 2⁹ = 113311101509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113311101986 and 113311102004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113311102321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226375 + ... + 527131.

It is an arithmetic number, because the mean of its divisors is an integer number (7750684039).

Almost surely, 2^113311102021 is an apocalyptic number.

It is an amenable number.

113311102021 is a deficient number, since it is larger than the sum of its proper divisors (10699842603).

113311102021 is a wasteful number, since it uses less digits than its factorization.

113311102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301240.

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

Adding to 113311102021 its reverse (120201113311), we get a palindrome (233512215332).

The spelling of 113311102021 in words is "one hundred thirteen billion, three hundred eleven million, one hundred two thousand, twenty-one".