231994922112 has 216 divisors, whose sum is σ = 699010085865. Its totient is φ = 73849509888.

The previous prime is 231994922077. The next prime is 231994922119. The reversal of 231994922112 is 211229499132.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 154902067776 + 77092854336 = 393576^2 + 277656^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=340584.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (231994922119) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 376004428 + ... + 376005044.

Almost surely, 2^231994922112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231994922112

231994922112 is an abundant number, since it is smaller than the sum of its proper divisors (467015163753).

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

231994922112 is an frugal number, since it uses more digits than its factorization.

231994922112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300 (or 645 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The spelling of 231994922112 in words is "two hundred thirty-one billion, nine hundred ninety-four million, nine hundred twenty-two thousand, one hundred twelve".