31300255231 has 12 divisors (see below), whose sum is σ = 36642424008. Its totient is φ = 26657899632.

The previous prime is 31300255213. The next prime is 31300255237. The reversal of 31300255231 is 13255200313.

It is not a de Polignac number, because 31300255231 - 2¹⁷ = 31300124159 is a prime.

It is a super-2 number, since 2×31300255231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31300255196 and 31300255205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31300255237) 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, 2026641 + ... + 2042026.

It is an arithmetic number, because the mean of its divisors is an integer number (3053535334).

Almost surely, 2^31300255231 is an apocalyptic number.

31300255231 is a deficient number, since it is larger than the sum of its proper divisors (5342168777).

31300255231 is a wasteful number, since it uses less digits than its factorization.

31300255231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4068838 (or 4068831 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 31300255231 its reverse (13255200313), we get a palindrome (44555455544).

The spelling of 31300255231 in words is "thirty-one billion, three hundred million, two hundred fifty-five thousand, two hundred thirty-one".