31532642061 has 16 divisors (see below), whose sum is σ = 42589814400. Its totient is φ = 20749436928.

The previous prime is 31532642047. The next prime is 31532642107. The reversal of 31532642061 is 16024623513.

It is not a de Polignac number, because 31532642061 - 2⁶ = 31532641997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31532642261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51720 + ... + 256398.

It is an arithmetic number, because the mean of its divisors is an integer number (2661863400).

Almost surely, 2^31532642061 is an apocalyptic number.

It is an amenable number.

31532642061 is a deficient number, since it is larger than the sum of its proper divisors (11057172339).

31532642061 is a wasteful number, since it uses less digits than its factorization.

31532642061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205348.

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 31532642061 in words is "thirty-one billion, five hundred thirty-two million, six hundred forty-two thousand, sixty-one".