231631538422 has 8 divisors (see below), whose sum is σ = 347477067000. Its totient is φ = 115805849424.

The previous prime is 231631538417. The next prime is 231631538423. The reversal of 231631538422 is 224835136132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231631538423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4930672 + ... + 4977427.

It is an arithmetic number, because the mean of its divisors is an integer number (43434633375).

Almost surely, 2^231631538422 is an apocalyptic number.

231631538422 is a deficient number, since it is larger than the sum of its proper divisors (115845528578).

231631538422 is a wasteful number, since it uses less digits than its factorization.

231631538422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9919790.

The product of its digits is 207360, while the sum is 40.

The spelling of 231631538422 in words is "two hundred thirty-one billion, six hundred thirty-one million, five hundred thirty-eight thousand, four hundred twenty-two".