231334431431342 has 32 divisors (see below), whose sum is σ = 352454308383744. Its totient is φ = 113859807745600.

The previous prime is 231334431431339. The next prime is 231334431431353. The reversal of 231334431431342 is 243134134433132.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 231334431431342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 784018403 + ... + 784313409.

It is an arithmetic number, because the mean of its divisors is an integer number (11014197136992).

Almost surely, 2^{231334431431342} is an apocalyptic number.

231334431431342 is a deficient number, since it is larger than the sum of its proper divisors (121119876952402).

231334431431342 is a wasteful number, since it uses less digits than its factorization.

231334431431342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312184.

The product of its digits is 746496, while the sum is 41.

Adding to 231334431431342 its reverse (243134134433132), we get a palindrome (474468565864474).

The spelling of 231334431431342 in words is "two hundred thirty-one trillion, three hundred thirty-four billion, four hundred thirty-one million, four hundred thirty-one thousand, three hundred forty-two".