31986260123329 has 16 divisors (see below), whose sum is σ = 34458454762560. Its totient is φ = 29583843632640.

The previous prime is 31986260123303. The next prime is 31986260123351. The reversal of 31986260123329 is 92332106268913.

It is a cyclic number.

It is not a de Polignac number, because 31986260123329 - 2⁷ = 31986260123201 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 31986260123329.

It is not an unprimeable number, because it can be changed into a prime (31986260183329) 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, 64602927 + ... + 65096164.

It is an arithmetic number, because the mean of its divisors is an integer number (2153653422660).

Almost surely, 2^{31986260123329} is an apocalyptic number.

It is an amenable number.

31986260123329 is a deficient number, since it is larger than the sum of its proper divisors (2472194639231).

31986260123329 is a wasteful number, since it uses less digits than its factorization.

31986260123329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129699360.

The product of its (nonzero) digits is 5038848, while the sum is 55.

The spelling of 31986260123329 in words is "thirty-one trillion, nine hundred eighty-six billion, two hundred sixty million, one hundred twenty-three thousand, three hundred twenty-nine".