31601005412 has 12 divisors (see below), whose sum is σ = 55344671340. Its totient is φ = 15788242176.

The previous prime is 31601005369. The next prime is 31601005451. The reversal of 31601005412 is 21450010613.

It can be written as a sum of positive squares in 2 ways, for example, as 12585698596 + 19015306816 = 112186^2 + 137896^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3059333 + ... + 3069644.

It is an arithmetic number, because the mean of its divisors is an integer number (4612055945).

Almost surely, 2^31601005412 is an apocalyptic number.

It is an amenable number.

31601005412 is a deficient number, since it is larger than the sum of its proper divisors (23743665928).

31601005412 is a wasteful number, since it uses less digits than its factorization.

31601005412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6130270 (or 6130268 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The spelling of 31601005412 in words is "thirty-one billion, six hundred one million, five thousand, four hundred twelve".