231322142488 has 32 divisors (see below), whose sum is σ = 455115283200. Its totient is φ = 110014255648.

The previous prime is 231322142479. The next prime is 231322142521. The reversal of 231322142488 is 884241223132.

It is a self number, because there is not a number n which added to its sum of digits gives 231322142488.

It is a congruent 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, 3478756 + ... + 3544627.

It is an arithmetic number, because the mean of its divisors is an integer number (14222352600).

Almost surely, 2^231322142488 is an apocalyptic number.

It is an amenable number.

231322142488 is a deficient number, since it is larger than the sum of its proper divisors (223793140712).

231322142488 is a wasteful number, since it uses less digits than its factorization.

231322142488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7023591 (or 7023587 counting only the distinct ones).

The product of its digits is 147456, while the sum is 40.

The spelling of 231322142488 in words is "two hundred thirty-one billion, three hundred twenty-two million, one hundred forty-two thousand, four hundred eighty-eight".