31432512541 has 4 divisors (see below), whose sum is σ = 31549362300. Its totient is φ = 31315662784.

The previous prime is 31432512539. The next prime is 31432512569. The reversal of 31432512541 is 14521523413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14521523413 = 2879 ⋅5043947.

It can be written as a sum of positive squares in 2 ways, for example, as 11873371225 + 19559141316 = 108965^2 + 139854^2 .

It is a cyclic number.

It is not a de Polignac number, because 31432512541 - 2¹ = 31432512539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31432512511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58424476 + ... + 58425013.

It is an arithmetic number, because the mean of its divisors is an integer number (7887340575).

Almost surely, 2^31432512541 is an apocalyptic number.

It is an amenable number.

31432512541 is a deficient number, since it is larger than the sum of its proper divisors (116849759).

31432512541 is a wasteful number, since it uses less digits than its factorization.

31432512541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116849758.

The product of its digits is 14400, while the sum is 31.

The spelling of 31432512541 in words is "thirty-one billion, four hundred thirty-two million, five hundred twelve thousand, five hundred forty-one".