231023444412 has 48 divisors (see below), whose sum is σ = 553697841312. Its totient is φ = 74916495360.

The previous prime is 231023444387. The next prime is 231023444417. The reversal of 231023444412 is 214444320132.

It is a self number, because there is not a number n which added to its sum of digits gives 231023444412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231023444417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3749212 + ... + 3810332.

It is an arithmetic number, because the mean of its divisors is an integer number (11535371694).

Almost surely, 2^231023444412 is an apocalyptic number.

It is an amenable number.

231023444412 is an abundant number, since it is smaller than the sum of its proper divisors (322674396900).

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

231023444412 is a wasteful number, since it uses less digits than its factorization.

231023444412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69678 (or 69676 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 231023444412 its reverse (214444320132), we get a palindrome (445467764544).

The spelling of 231023444412 in words is "two hundred thirty-one billion, twenty-three million, four hundred forty-four thousand, four hundred twelve".