112321311021 has 6 divisors (see below), whose sum is σ = 162241893710. Its totient is φ = 74880874008.

The previous prime is 112321311019. The next prime is 112321311043. The reversal of 112321311021 is 120113123211.

112321311021 is a `hidden beast` number, since 1 + 12 + 321 + 311 + 0 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 79093125225 + 33228185796 = 281235^2 + 182286^2 .

It is not a de Polignac number, because 112321311021 - 2¹ = 112321311019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112321310985 and 112321311003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112321311521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6240072826 + ... + 6240072843.

Almost surely, 2^112321311021 is an apocalyptic number.

It is an amenable number.

112321311021 is a deficient number, since it is larger than the sum of its proper divisors (49920582689).

112321311021 is a wasteful number, since it uses less digits than its factorization.

112321311021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12480145675 (or 12480145672 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 112321311021 its reverse (120113123211), we get a palindrome (232434434232).

The spelling of 112321311021 in words is "one hundred twelve billion, three hundred twenty-one million, three hundred eleven thousand, twenty-one".