31325102061605 has 24 divisors (see below), whose sum is σ = 41995413939192. Its totient is φ = 22408418736000.

The previous prime is 31325102061571. The next prime is 31325102061689. The reversal of 31325102061605 is 50616020152313.

It can be written as a sum of positive squares in 4 ways, for example, as 1239679601281 + 30085422460324 = 1113409^2 + 5485018^2 .

It is not a de Polignac number, because 31325102061605 - 2¹⁴ = 31325102045221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 424364966 + ... + 424438775.

It is an arithmetic number, because the mean of its divisors is an integer number (1749808914133).

Almost surely, 2^{31325102061605} is an apocalyptic number.

It is an amenable number.

31325102061605 is a deficient number, since it is larger than the sum of its proper divisors (10670311877587).

31325102061605 is a wasteful number, since it uses less digits than its factorization.

31325102061605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848803829 (or 848803818 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 31325102061605 in words is "thirty-one trillion, three hundred twenty-five billion, one hundred two million, sixty-one thousand, six hundred five".