231311494 has 8 divisors (see below), whose sum is σ = 356344848. Its totient is φ = 112529880.

The previous prime is 231311489. The next prime is 231311501. The reversal of 231311494 is 494113132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1562842 + ... + 1562989.

It is an arithmetic number, because the mean of its divisors is an integer number (44543106).

Almost surely, 2^231311494 is an apocalyptic number.

231311494 is a deficient number, since it is larger than the sum of its proper divisors (125033354).

231311494 is a wasteful number, since it uses less digits than its factorization.

231311494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3125870.

The product of its digits is 2592, while the sum is 28.

The square root of 231311494 is about 15208.9281016119. The cubic root of 231311494 is about 613.8549155516.

The spelling of 231311494 in words is "two hundred thirty-one million, three hundred eleven thousand, four hundred ninety-four".