2131321011303 has 32 divisors (see below), whose sum is σ = 3144210918912. Its totient is φ = 1273336668800.

The previous prime is 2131321011271. The next prime is 2131321011307. The reversal of 2131321011303 is 3031101231312.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2131321011303 - 2⁵ = 2131321011271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2131321011303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131321011307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17551825 + ... + 17672837.

It is an arithmetic number, because the mean of its divisors is an integer number (98256591216).

Almost surely, 2^{2131321011303} is an apocalyptic number.

2131321011303 is a deficient number, since it is larger than the sum of its proper divisors (1012889907609).

2131321011303 is a wasteful number, since it uses less digits than its factorization.

2131321011303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128615.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 2131321011303 its reverse (3031101231312), we get a palindrome (5162422242615).

The spelling of 2131321011303 in words is "two trillion, one hundred thirty-one billion, three hundred twenty-one million, eleven thousand, three hundred three".