2131512325242 has 16 divisors (see below), whose sum is σ = 4263040153632. Its totient is φ = 710501524560.

The previous prime is 2131512325231. The next prime is 2131512325247. The reversal of 2131512325242 is 2425232151312.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1934088 + ... + 2829084.

It is an arithmetic number, because the mean of its divisors is an integer number (266440009602).

Almost surely, 2^{2131512325242} is an apocalyptic number.

2131512325242 is an abundant number, since it is smaller than the sum of its proper divisors (2131527828390).

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

2131512325242 is a wasteful number, since it uses less digits than its factorization.

2131512325242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291933.

The product of its digits is 28800, while the sum is 33.

Adding to 2131512325242 its reverse (2425232151312), we get a palindrome (4556744476554).

The spelling of 2131512325242 in words is "two trillion, one hundred thirty-one billion, five hundred twelve million, three hundred twenty-five thousand, two hundred forty-two".