31012134399 has 6 divisors (see below), whose sum is σ = 44795305256. Its totient is φ = 20674756260.

The previous prime is 31012134397. The next prime is 31012134431. The reversal of 31012134399 is 99343121013.

31012134399 is a `hidden beast` number, since 3 + 1 + 0 + 1 + 213 + 439 + 9 = 666.

It is not a de Polignac number, because 31012134399 - 2¹ = 31012134397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31012134397) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1722896347 + ... + 1722896364.

Almost surely, 2^31012134399 is an apocalyptic number.

31012134399 is a deficient number, since it is larger than the sum of its proper divisors (13783170857).

31012134399 is a wasteful number, since it uses less digits than its factorization.

31012134399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3445792717 (or 3445792714 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The spelling of 31012134399 in words is "thirty-one billion, twelve million, one hundred thirty-four thousand, three hundred ninety-nine".