231340323032 has 128 divisors (see below), whose sum is σ = 574534477440. Its totient is φ = 84723425280.

The previous prime is 231340323029. The next prime is 231340323061. The reversal of 231340323032 is 230323043132.

It is a super-3 number, since 3×231340323032³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 231340322992 and 231340323010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 601718 + ... + 908154.

It is an arithmetic number, because the mean of its divisors is an integer number (4488550605).

Almost surely, 2^231340323032 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 231340323032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287267238720).

231340323032 is an abundant number, since it is smaller than the sum of its proper divisors (343194154408).

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

231340323032 is a wasteful number, since it uses less digits than its factorization.

231340323032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306541 (or 306537 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 231340323032 its reverse (230323043132), we get a palindrome (461663366164).

The spelling of 231340323032 in words is "two hundred thirty-one billion, three hundred forty million, three hundred twenty-three thousand, thirty-two".