2131023313331 has 16 divisors (see below), whose sum is σ = 2364535152000. Its totient is φ = 1904152435200.

The previous prime is 2131023313313. The next prime is 2131023313361. The reversal of 2131023313331 is 1333133201312.

It is a cyclic number.

It is not a de Polignac number, because 2131023313331 - 2²² = 2131019119027 is a prime.

It is a super-2 number, since 2×2131023313331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2131023313331.

It is not an unprimeable number, because it can be changed into a prime (2131023313301) 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, 3827411 + ... + 4348691.

It is an arithmetic number, because the mean of its divisors is an integer number (147783447000).

Almost surely, 2^{2131023313331} is an apocalyptic number.

2131023313331 is a deficient number, since it is larger than the sum of its proper divisors (233511838669).

2131023313331 is a wasteful number, since it uses less digits than its factorization.

2131023313331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527650.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 2131023313331 its reverse (1333133201312), we get a palindrome (3464156514643).

The spelling of 2131023313331 in words is "two trillion, one hundred thirty-one billion, twenty-three million, three hundred thirteen thousand, three hundred thirty-one".