31320752275 has 6 divisors (see below), whose sum is σ = 38837732852. Its totient is φ = 25056601800.

The previous prime is 31320752269. The next prime is 31320752279. The reversal of 31320752275 is 57225702313.

It is not a de Polignac number, because 31320752275 - 2¹³ = 31320744083 is a prime.

It is a super-3 number, since 3×31320752275³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31320752279) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 626415021 + ... + 626415070.

Almost surely, 2^31320752275 is an apocalyptic number.

31320752275 is a deficient number, since it is larger than the sum of its proper divisors (7516980577).

31320752275 is a wasteful number, since it uses less digits than its factorization.

31320752275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252830101 (or 1252830096 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 37.

The spelling of 31320752275 in words is "thirty-one billion, three hundred twenty million, seven hundred fifty-two thousand, two hundred seventy-five".