2131432402242 has 64 divisors (see below), whose sum is σ = 5009485178880. Its totient is φ = 596042452800.

The previous prime is 2131432402181. The next prime is 2131432402279. The reversal of 2131432402242 is 2422042341312.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2830359 + ... + 3503397.

It is an arithmetic number, because the mean of its divisors is an integer number (78273205920).

Almost surely, 2^{2131432402242} is an apocalyptic number.

2131432402242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2131432402242 is an abundant number, since it is smaller than the sum of its proper divisors (2878052776638).

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

2131432402242 is a wasteful number, since it uses less digits than its factorization.

2131432402242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676759.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 2131432402242 its reverse (2422042341312), we get a palindrome (4553474743554).

The spelling of 2131432402242 in words is "two trillion, one hundred thirty-one billion, four hundred thirty-two million, four hundred two thousand, two hundred forty-two".