231139101464 has 8 divisors (see below), whose sum is σ = 433385815260. Its totient is φ = 115569550728.

The previous prime is 231139101421. The next prime is 231139101467. The reversal of 231139101464 is 464101931132.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 14446193834 + ... + 14446193849.

Almost surely, 2^231139101464 is an apocalyptic number.

It is an amenable number.

231139101464 is a deficient number, since it is larger than the sum of its proper divisors (202246713796).

231139101464 is a wasteful number, since it uses less digits than its factorization.

231139101464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28892387689 (or 28892387685 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 231139101464 in words is "two hundred thirty-one billion, one hundred thirty-nine million, one hundred one thousand, four hundred sixty-four".