31557027141 has 32 divisors (see below), whose sum is σ = 47456144640. Its totient is φ = 20721355200.

The previous prime is 31557027119. The next prime is 31557027181. The reversal of 31557027141 is 14172075513.

31557027141 is a `hidden beast` number, since 3 + 15 + 570 + 2 + 71 + 4 + 1 = 666.

It is not a de Polignac number, because 31557027141 - 2¹⁵ = 31556994373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31557027096 and 31557027105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31557027101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2087751 + ... + 2102811.

It is an arithmetic number, because the mean of its divisors is an integer number (1483004520).

Almost surely, 2^31557027141 is an apocalyptic number.

It is an amenable number.

31557027141 is a deficient number, since it is larger than the sum of its proper divisors (15899117499).

31557027141 is a wasteful number, since it uses less digits than its factorization.

31557027141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16234 (or 16228 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The spelling of 31557027141 in words is "thirty-one billion, five hundred fifty-seven million, twenty-seven thousand, one hundred forty-one".