31611382601 has 16 divisors (see below), whose sum is σ = 33400473600. Its totient is φ = 29835019008.

The previous prime is 31611382591. The next prime is 31611382609. The reversal of 31611382601 is 10628311613.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31611382601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31611382609) 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, 8126465 + ... + 8130353.

It is an arithmetic number, because the mean of its divisors is an integer number (2087529600).

Almost surely, 2^31611382601 is an apocalyptic number.

It is an amenable number.

31611382601 is a deficient number, since it is larger than the sum of its proper divisors (1789090999).

31611382601 is a wasteful number, since it uses less digits than its factorization.

31611382601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5408.

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 31611382601 in words is "thirty-one billion, six hundred eleven million, three hundred eighty-two thousand, six hundred one".