231291946052 has 24 divisors (see below), whose sum is σ = 405710860800. Its totient is φ = 115374684096.

The previous prime is 231291946033. The next prime is 231291946129. The reversal of 231291946052 is 250649192132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 231291945994 and 231291946012.

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, 8645048 + ... + 8671760.

It is an arithmetic number, because the mean of its divisors is an integer number (16904619200).

Almost surely, 2^231291946052 is an apocalyptic number.

It is an amenable number.

231291946052 is a deficient number, since it is larger than the sum of its proper divisors (174418914748).

231291946052 is a wasteful number, since it uses less digits than its factorization.

231291946052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31715 (or 31713 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 231291946052 in words is "two hundred thirty-one billion, two hundred ninety-one million, nine hundred forty-six thousand, fifty-two".