231079281216 has 224 divisors, whose sum is σ = 702915812352. Its totient is φ = 65629501440.

The previous prime is 231079281193. The next prime is 231079281217. The reversal of 231079281216 is 612182970132.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (231079281217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217793326 + ... + 217794386.

Almost surely, 2^231079281216 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 231079281216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351457906176).

231079281216 is an abundant number, since it is smaller than the sum of its proper divisors (471836531136).

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

231079281216 is a wasteful number, since it uses less digits than its factorization.

231079281216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897 (or 1887 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 231079281216 in words is "two hundred thirty-one billion, seventy-nine million, two hundred eighty-one thousand, two hundred sixteen".