23431143512 has 16 divisors (see below), whose sum is σ = 50209593360. Its totient is φ = 10041918624.

The previous prime is 23431143473. The next prime is 23431143523. The reversal of 23431143512 is 21534113432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209206583 + ... + 209206694.

It is an arithmetic number, because the mean of its divisors is an integer number (3138099585).

Almost surely, 2^23431143512 is an apocalyptic number.

It is an amenable number.

23431143512 is an abundant number, since it is smaller than the sum of its proper divisors (26778449848).

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

23431143512 is a wasteful number, since it uses less digits than its factorization.

23431143512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418413290 (or 418413286 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

Adding to 23431143512 its reverse (21534113432), we get a palindrome (44965256944).

The spelling of 23431143512 in words is "twenty-three billion, four hundred thirty-one million, one hundred forty-three thousand, five hundred twelve".