231301301232 has 160 divisors (see below), whose sum is σ = 650097391104. Its totient is φ = 70577971200.

The previous prime is 231301301219. The next prime is 231301301233. The reversal of 231301301232 is 232103103132.

It is a junction number, because it is equal to n+sod(n) for n = 231301301199 and 231301301208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231301301233) 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, 11063493 + ... + 11084379.

Almost surely, 2^231301301232 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 231301301232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325048695552).

231301301232 is an abundant number, since it is smaller than the sum of its proper divisors (418796089872).

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

231301301232 is a wasteful number, since it uses less digits than its factorization.

231301301232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21287 (or 21281 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 231301301232 its reverse (232103103132), we get a palindrome (463404404364).

The spelling of 231301301232 in words is "two hundred thirty-one billion, three hundred one million, three hundred one thousand, two hundred thirty-two".