231310312011302 has 4 divisors (see below), whose sum is σ = 346965468016956. Its totient is φ = 115655156005650.

The previous prime is 231310312011301. The next prime is 231310312011313. The reversal of 231310312011302 is 203110213013132.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231310312011301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57827578002824 + ... + 57827578002827.

It is an arithmetic number, because the mean of its divisors is an integer number (86741367004239).

Almost surely, 2^{231310312011302} is an apocalyptic number.

231310312011302 is a deficient number, since it is larger than the sum of its proper divisors (115655156005654).

231310312011302 is a wasteful number, since it uses less digits than its factorization.

231310312011302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115655156005653.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 231310312011302 its reverse (203110213013132), we get a palindrome (434420525024434).

The spelling of 231310312011302 in words is "two hundred thirty-one trillion, three hundred ten billion, three hundred twelve million, eleven thousand, three hundred two".