31204244401 has 16 divisors (see below), whose sum is σ = 34187212800. Its totient is φ = 28245848400.

The previous prime is 31204244353. The next prime is 31204244411. The reversal of 31204244401 is 10444240213.

It is a de Polignac number, because none of the positive numbers 2^k-31204244401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31204244411) 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, 3550030 + ... + 3558808.

It is an arithmetic number, because the mean of its divisors is an integer number (2136700800).

Almost surely, 2^31204244401 is an apocalyptic number.

It is an amenable number.

31204244401 is a deficient number, since it is larger than the sum of its proper divisors (2982968399).

31204244401 is a wasteful number, since it uses less digits than its factorization.

31204244401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10140.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 31204244401 its reverse (10444240213), we get a palindrome (41648484614).

The spelling of 31204244401 in words is "thirty-one billion, two hundred four million, two hundred forty-four thousand, four hundred one".