231341690238 has 16 divisors (see below), whose sum is σ = 462688108176. Its totient is φ = 77113108800.

The previous prime is 231341690233. The next prime is 231341690267. The reversal of 231341690238 is 832096143132.

It is a self number, because there is not a number n which added to its sum of digits gives 231341690238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231341690233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 981288 + ... + 1193988.

It is an arithmetic number, because the mean of its divisors is an integer number (28918006761).

Almost surely, 2^231341690238 is an apocalyptic number.

231341690238 is an abundant number, since it is smaller than the sum of its proper divisors (231346417938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231341690238 is a wasteful number, since it uses less digits than its factorization.

231341690238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393979.

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 231341690238 in words is "two hundred thirty-one billion, three hundred forty-one million, six hundred ninety thousand, two hundred thirty-eight".