231322637830 has 16 divisors (see below), whose sum is σ = 440873733600. Its totient is φ = 87086169472.

The previous prime is 231322637789. The next prime is 231322637873. The reversal of 231322637830 is 38736223132.

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, 680360530 + ... + 680360869.

It is an arithmetic number, because the mean of its divisors is an integer number (27554608350).

Almost surely, 2^231322637830 is an apocalyptic number.

231322637830 is a deficient number, since it is larger than the sum of its proper divisors (209551095770).

231322637830 is a wasteful number, since it uses less digits than its factorization.

231322637830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360721423.

The product of its (nonzero) digits is 217728, while the sum is 40.

The spelling of 231322637830 in words is "two hundred thirty-one billion, three hundred twenty-two million, six hundred thirty-seven thousand, eight hundred thirty".