113123133420 has 48 divisors (see below), whose sum is σ = 345539755008. Its totient is φ = 27423789760.

The previous prime is 113123133391. The next prime is 113123133433. The reversal of 113123133420 is 24331321311.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85698684 + ... + 85700003.

It is an arithmetic number, because the mean of its divisors is an integer number (7198744896).

Almost surely, 2^113123133420 is an apocalyptic number.

113123133420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113123133420 is an abundant number, since it is smaller than the sum of its proper divisors (232416621588).

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

113123133420 is a wasteful number, since it uses less digits than its factorization.

113123133420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171398710 (or 171398708 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 113123133420 its reverse (24331321311), we get a palindrome (137454454731).

The spelling of 113123133420 in words is "one hundred thirteen billion, one hundred twenty-three million, one hundred thirty-three thousand, four hundred twenty".