231139101465 has 48 divisors (see below), whose sum is σ = 401451652992. Its totient is φ = 123025070592.

The previous prime is 231139101421. The next prime is 231139101467. The reversal of 231139101465 is 564101931132.

It is not a de Polignac number, because 231139101465 - 2¹⁴ = 231139085081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231139101467) 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, 81586689 + ... + 81589521.

It is an arithmetic number, because the mean of its divisors is an integer number (8363576104).

Almost surely, 2^231139101465 is an apocalyptic number.

It is an amenable number.

231139101465 is a deficient number, since it is larger than the sum of its proper divisors (170312551527).

231139101465 is a wasteful number, since it uses less digits than its factorization.

231139101465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5870 (or 5867 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 231139101465 in words is "two hundred thirty-one billion, one hundred thirty-nine million, one hundred one thousand, four hundred sixty-five".