31430682697 has 16 divisors (see below), whose sum is σ = 33220212480. Its totient is φ = 29704521600.

The previous prime is 31430682691. The next prime is 31430682719. The reversal of 31430682697 is 79628603413.

It is a cyclic number.

It is not a de Polignac number, because 31430682697 - 2²³ = 31422294089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31430682697.

It is not an unprimeable number, because it can be changed into a prime (31430682691) 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, 80122 + ... + 263212.

It is an arithmetic number, because the mean of its divisors is an integer number (2076263280).

Almost surely, 2^31430682697 is an apocalyptic number.

It is an amenable number.

31430682697 is a deficient number, since it is larger than the sum of its proper divisors (1789529783).

31430682697 is a wasteful number, since it uses less digits than its factorization.

31430682697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183264.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The spelling of 31430682697 in words is "thirty-one billion, four hundred thirty million, six hundred eighty-two thousand, six hundred ninety-seven".