113212332021 has 16 divisors (see below), whose sum is σ = 151856437824. Its totient is φ = 75022664064.

The previous prime is 113212332017. The next prime is 113212332043. The reversal of 113212332021 is 120233212311.

It is not a de Polignac number, because 113212332021 - 2² = 113212332017 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113212332011) 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, 272355 + ... + 548271.

It is an arithmetic number, because the mean of its divisors is an integer number (9491027364).

Almost surely, 2^113212332021 is an apocalyptic number.

It is an amenable number.

113212332021 is a deficient number, since it is larger than the sum of its proper divisors (38644105803).

113212332021 is a wasteful number, since it uses less digits than its factorization.

113212332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276740.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 113212332021 its reverse (120233212311), we get a palindrome (233445544332).

The spelling of 113212332021 in words is "one hundred thirteen billion, two hundred twelve million, three hundred thirty-two thousand, twenty-one".