231722534912 has 108 divisors (see below), whose sum is σ = 509809404195. Its totient is φ = 105219502080.

The previous prime is 231722534893. The next prime is 231722534957. The reversal of 231722534912 is 219435227132.

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 only one way, i.e., 115861267456 + 115861267456 = 340384^2 + 340384^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=340384.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231722534912.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 239629853 + ... + 239630819.

Almost surely, 2^231722534912 is an apocalyptic number.

231722534912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231722534912

231722534912 is an abundant number, since it is smaller than the sum of its proper divisors (278086869283).

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

231722534912 is an frugal number, since it uses more digits than its factorization.

231722534912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978 (or 980 counting only the distinct ones).

The product of its digits is 181440, while the sum is 41.

The spelling of 231722534912 in words is "two hundred thirty-one billion, seven hundred twenty-two million, five hundred thirty-four thousand, nine hundred twelve".