113133220312 has 128 divisors (see below), whose sum is σ = 253761984000. Its totient is φ = 46260910080.

The previous prime is 113133220297. The next prime is 113133220327. The reversal of 113133220312 is 213022331311.

It is an interprime number because it is at equal distance from previous prime (113133220297) and next prime (113133220327).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128414112 + ... + 128414992.

It is an arithmetic number, because the mean of its divisors is an integer number (1982515500).

Almost surely, 2^113133220312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113133220312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126880992000).

113133220312 is an abundant number, since it is smaller than the sum of its proper divisors (140628763688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113133220312 is a wasteful number, since it uses less digits than its factorization.

113133220312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769 (or 1765 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 113133220312 its reverse (213022331311), we get a palindrome (326155551623).

The spelling of 113133220312 in words is "one hundred thirteen billion, one hundred thirty-three million, two hundred twenty thousand, three hundred twelve".