40031213097 has 16 divisors (see below), whose sum is σ = 56696395392. Its totient is φ = 25036849920.

The previous prime is 40031213087. The next prime is 40031213137. The reversal of 40031213097 is 79031213004.

It is not a de Polignac number, because 40031213097 - 2²⁰ = 40030164521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40031213077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1246078 + ... + 1277799.

It is an arithmetic number, because the mean of its divisors is an integer number (3543524712).

Almost surely, 2^40031213097 is an apocalyptic number.

It is an amenable number.

40031213097 is a deficient number, since it is larger than the sum of its proper divisors (16665182295).

40031213097 is a wasteful number, since it uses less digits than its factorization.

40031213097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524208.

The product of its (nonzero) digits is 4536, while the sum is 30.

The spelling of 40031213097 in words is "forty billion, thirty-one million, two hundred thirteen thousand, ninety-seven".