2131260406542 has 96 divisors (see below), whose sum is σ = 4720396262400. Its totient is φ = 694755173376.

The previous prime is 2131260406537. The next prime is 2131260406573. The reversal of 2131260406542 is 2456040621312.

2131260406542 is a `hidden beast` number, since 2 + 1 + 3 + 1 + 2 + 604 + 0 + 6 + 5 + 42 = 666.

It is a super-2 number, since 2×2131260406542² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2131260406497 and 2131260406506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 500411209 + ... + 500415467.

It is an arithmetic number, because the mean of its divisors is an integer number (49170794400).

Almost surely, 2^{2131260406542} is an apocalyptic number.

2131260406542 is an abundant number, since it is smaller than the sum of its proper divisors (2589135855858).

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

2131260406542 is a wasteful number, since it uses less digits than its factorization.

2131260406542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6662 (or 6659 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 2131260406542 in words is "two trillion, one hundred thirty-one billion, two hundred sixty million, four hundred six thousand, five hundred forty-two".