113001331221 has 48 divisors (see below), whose sum is σ = 171975358464. Its totient is φ = 71414721792.

The previous prime is 113001331171. The next prime is 113001331229. The reversal of 113001331221 is 122133100311.

113001331221 is a `hidden beast` number, since 11 + 300 + 1 + 331 + 2 + 21 = 666.

It is not a de Polignac number, because 113001331221 - 2⁹ = 113001330709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113001331194 and 113001331203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113001331229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3473985 + ... + 3506361.

It is an arithmetic number, because the mean of its divisors is an integer number (3582819968).

Almost surely, 2^113001331221 is an apocalyptic number.

It is an amenable number.

113001331221 is a deficient number, since it is larger than the sum of its proper divisors (58974027243).

113001331221 is a wasteful number, since it uses less digits than its factorization.

113001331221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32690 (or 32687 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 113001331221 its reverse (122133100311), we get a palindrome (235134431532).

The spelling of 113001331221 in words is "one hundred thirteen billion, one million, three hundred thirty-one thousand, two hundred twenty-one".