231342401031 has 32 divisors (see below), whose sum is σ = 354947481600. Its totient is φ = 131286463200.

The previous prime is 231342401021. The next prime is 231342401053. The reversal of 231342401031 is 130104243132.

It is a happy number.

It is not a de Polignac number, because 231342401031 - 2¹⁵ = 231342368263 is a prime.

It is a super-2 number, since 2×231342401031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231342400992 and 231342401010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231342401011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17494140 + ... + 17507358.

It is an arithmetic number, because the mean of its divisors is an integer number (11092108800).

Almost surely, 2^231342401031 is an apocalyptic number.

231342401031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

231342401031 is a deficient number, since it is larger than the sum of its proper divisors (123605080569).

231342401031 is a wasteful number, since it uses less digits than its factorization.

231342401031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18899.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 231342401031 its reverse (130104243132), we get a palindrome (361446644163).

The spelling of 231342401031 in words is "two hundred thirty-one billion, three hundred forty-two million, four hundred one thousand, thirty-one".