231534013254402 has 16 divisors (see below), whose sum is σ = 463070073578112. Its totient is φ = 77177663239920.

The previous prime is 231534013254311. The next prime is 231534013254421. The reversal of 231534013254402 is 204452310435132.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83822233 + ... + 86540364.

It is an arithmetic number, because the mean of its divisors is an integer number (28941879598632).

Almost surely, 2^{231534013254402} is an apocalyptic number.

231534013254402 is an abundant number, since it is smaller than the sum of its proper divisors (231536060323710).

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

231534013254402 is a wasteful number, since it uses less digits than its factorization.

231534013254402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170589113.

The product of its (nonzero) digits is 345600, while the sum is 39.

Adding to 231534013254402 its reverse (204452310435132), we get a palindrome (435986323689534).

The spelling of 231534013254402 in words is "two hundred thirty-one trillion, five hundred thirty-four billion, thirteen million, two hundred fifty-four thousand, four hundred two".