31444600901 has 12 divisors (see below), whose sum is σ = 36703271052. Its totient is φ = 26860514688.

The previous prime is 31444600897. The next prime is 31444600909. The reversal of 31444600901 is 10900644413.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29937996676 + 1506604225 = 173026^2 + 38815^2 .

It is not a de Polignac number, because 31444600901 - 2² = 31444600897 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31444600909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1080740 + ... + 1109453.

It is an arithmetic number, because the mean of its divisors is an integer number (3058605921).

Almost surely, 2^31444600901 is an apocalyptic number.

It is an amenable number.

31444600901 is a deficient number, since it is larger than the sum of its proper divisors (5258670151).

31444600901 is a wasteful number, since it uses less digits than its factorization.

31444600901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190500 (or 2190493 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 31444600901 in words is "thirty-one billion, four hundred forty-four million, six hundred thousand, nine hundred one".