231331552342 has 32 divisors (see below), whose sum is σ = 383400806400. Its totient is φ = 103801651200.

The previous prime is 231331552337. The next prime is 231331552343. The reversal of 231331552342 is 243255133132.

It is a junction number, because it is equal to n+sod(n) for n = 231331552298 and 231331552307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231331552343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18818134 + ... + 18830422.

It is an arithmetic number, because the mean of its divisors is an integer number (11981275200).

Almost surely, 2^231331552342 is an apocalyptic number.

231331552342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231331552342 is a deficient number, since it is larger than the sum of its proper divisors (152069254058).

231331552342 is a wasteful number, since it uses less digits than its factorization.

231331552342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23212.

The product of its digits is 64800, while the sum is 34.

Adding to 231331552342 its reverse (243255133132), we get a palindrome (474586685474).

The spelling of 231331552342 in words is "two hundred thirty-one billion, three hundred thirty-one million, five hundred fifty-two thousand, three hundred forty-two".