2131288942 has 16 divisors (see below), whose sum is σ = 3214343520. Its totient is φ = 1059857568.

The previous prime is 2131288933. The next prime is 2131288969. The reversal of 2131288942 is 2498821312.

It is a junction number, because it is equal to n+sod(n) for n = 2131288895 and 2131288904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281308 + ... + 288784.

It is an arithmetic number, because the mean of its divisors is an integer number (200896470).

Almost surely, 2^2131288942 is an apocalyptic number.

2131288942 is a deficient number, since it is larger than the sum of its proper divisors (1083054578).

2131288942 is a wasteful number, since it uses less digits than its factorization.

2131288942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8235.

The product of its digits is 55296, while the sum is 40.

The square root of 2131288942 is about 46165.8850451283. The cubic root of 2131288942 is about 1286.9078317697.

The spelling of 2131288942 in words is "two billion, one hundred thirty-one million, two hundred eighty-eight thousand, nine hundred forty-two".