231312431442 has 8 divisors (see below), whose sum is σ = 462624862896. Its totient is φ = 77104143812.

The previous prime is 231312431411. The next prime is 231312431479. The reversal of 231312431442 is 244134213132.

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

231312431442 is an admirable 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, 19276035948 + ... + 19276035959.

It is an arithmetic number, because the mean of its divisors is an integer number (57828107862).

Almost surely, 2^231312431442 is an apocalyptic number.

231312431442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

231312431442 is a wasteful number, since it uses less digits than its factorization.

231312431442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38552071912.

The product of its digits is 13824, while the sum is 30.

Adding to 231312431442 its reverse (244134213132), we get a palindrome (475446644574).

The spelling of 231312431442 in words is "two hundred thirty-one billion, three hundred twelve million, four hundred thirty-one thousand, four hundred forty-two".