31004040212397 has 48 divisors (see below), whose sum is σ = 52272211530240. Its totient is φ = 17338990242816.

The previous prime is 31004040212359. The next prime is 31004040212399. The reversal of 31004040212397 is 79321204040013.

It is a happy number.

31004040212397 is a `hidden beast` number, since 3 + 1 + 0 + 0 + 40 + 402 + 123 + 97 = 666.

It is not a de Polignac number, because 31004040212397 - 2³⁹ = 30454284398509 is a prime.

It is a super-2 number, since 2×31004040212397² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31004040212399) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84243379 + ... + 84610607.

It is an arithmetic number, because the mean of its divisors is an integer number (1089004406880).

Almost surely, 2^{31004040212397} is an apocalyptic number.

It is an amenable number.

31004040212397 is a deficient number, since it is larger than the sum of its proper divisors (21268171317843).

31004040212397 is a wasteful number, since it uses less digits than its factorization.

31004040212397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395802 (or 395799 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 31004040212397 in words is "thirty-one trillion, four billion, forty million, two hundred twelve thousand, three hundred ninety-seven".