5131020031542 has 16 divisors (see below), whose sum is σ = 11402266736880. Its totient is φ = 1710340010496.

The previous prime is 5131020031537. The next prime is 5131020031561. The reversal of 5131020031542 is 2451300201315.

5131020031542 is a `hidden beast` number, since 5 + 13 + 102 + 0 + 0 + 3 + 1 + 542 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 47509444683 + ... + 47509444790.

It is an arithmetic number, because the mean of its divisors is an integer number (712641671055).

Almost surely, 2^{5131020031542} is an apocalyptic number.

5131020031542 is an abundant number, since it is smaller than the sum of its proper divisors (6271246705338).

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

5131020031542 is a wasteful number, since it uses less digits than its factorization.

5131020031542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95018889484 (or 95018889478 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 5131020031542 its reverse (2451300201315), we get a palindrome (7582320232857).

The spelling of 5131020031542 in words is "five trillion, one hundred thirty-one billion, twenty million, thirty-one thousand, five hundred forty-two".