113321231000020 has 48 divisors (see below), whose sum is σ = 238429507680000. Its totient is φ = 45241904488320.

The previous prime is 113321230999981. The next prime is 113321231000023. The reversal of 113321231000020 is 20000132123311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113321231000023) 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, 26346915 + ... + 30344725.

It is an arithmetic number, because the mean of its divisors is an integer number (4967281410000).

Almost surely, 2^{113321231000020} is an apocalyptic number.

113321231000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113321231000020 is an abundant number, since it is smaller than the sum of its proper divisors (125108276679980).

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

113321231000020 is a wasteful number, since it uses less digits than its factorization.

113321231000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4000528 (or 4000526 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 113321231000020 its reverse (20000132123311), we get a palindrome (133321363123331).

The spelling of 113321231000020 in words is "one hundred thirteen trillion, three hundred twenty-one billion, two hundred thirty-one million, twenty", and thus it is an aban number.