2131512325243 has 16 divisors (see below), whose sum is σ = 2500472899584. Its totient is φ = 1779061102560.

The previous prime is 2131512325231. The next prime is 2131512325247. The reversal of 2131512325243 is 3425232151312.

It is not a de Polignac number, because 2131512325243 - 2⁵ = 2131512325211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131512325199 and 2131512325208.

It is not an unprimeable number, because it can be changed into a prime (2131512325247) by changing a digit.

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, 16378743 + ... + 16508368.

It is an arithmetic number, because the mean of its divisors is an integer number (156279556224).

Almost surely, 2^{2131512325243} is an apocalyptic number.

2131512325243 is a deficient number, since it is larger than the sum of its proper divisors (368960574341).

2131512325243 is a wasteful number, since it uses less digits than its factorization.

2131512325243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32887362.

The product of its digits is 43200, while the sum is 34.

Adding to 2131512325243 its reverse (3425232151312), we get a palindrome (5556744476555).

The spelling of 2131512325243 in words is "two trillion, one hundred thirty-one billion, five hundred twelve million, three hundred twenty-five thousand, two hundred forty-three".