231332134440434 has 48 divisors (see below), whose sum is σ = 363892698299328. Its totient is φ = 110259945360000.

The previous prime is 231332134440419. The next prime is 231332134440437. The reversal of 231332134440434 is 434044431233132.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a junction number, because it is equal to n+sod(n) for n = 231332134440391 and 231332134440400.

It is not an unprimeable number, because it can be changed into a prime (231332134440437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27232289 + ... + 34702475.

It is an arithmetic number, because the mean of its divisors is an integer number (7581097881236).

Almost surely, 2^{231332134440434} is an apocalyptic number.

231332134440434 is a deficient number, since it is larger than the sum of its proper divisors (132560563858894).

231332134440434 is a wasteful number, since it uses less digits than its factorization.

231332134440434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7470483 (or 7470442 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 41.

Adding to 231332134440434 its reverse (434044431233132), we get a palindrome (665376565673566).

The spelling of 231332134440434 in words is "two hundred thirty-one trillion, three hundred thirty-two billion, one hundred thirty-four million, four hundred forty thousand, four hundred thirty-four".