2131120311000 has 128 divisors (see below), whose sum is σ = 6649690844160. Its totient is φ = 568247856000.

The previous prime is 2131120310951. The next prime is 2131120311013. The reversal of 2131120311000 is 1130211312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 43316415 + ... + 43365585.

It is an arithmetic number, because the mean of its divisors is an integer number (51950709720).

Almost surely, 2^{2131120311000} is an apocalyptic number.

2131120311000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131120311000 is an abundant number, since it is smaller than the sum of its proper divisors (4518570533160).

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

2131120311000 is a wasteful number, since it uses less digits than its factorization.

2131120311000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63642 (or 63628 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 2131120311000 its reverse (1130211312), we get a palindrome (2132250522312).

The spelling of 2131120311000 in words is "two trillion, one hundred thirty-one billion, one hundred twenty million, three hundred eleven thousand".