231040021313430 has 192 divisors, whose sum is σ = 710220555907200. Its totient is φ = 50986091520000.

The previous prime is 231040021313371. The next prime is 231040021313441. The reversal of 231040021313430 is 34313120040132.

It is a happy number.

231040021313430 is a `hidden beast` number, since 2 + 3 + 1 + 0 + 4 + 0 + 0 + 213 + 13 + 430 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 231040021313394 and 231040021313403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 478597180 + ... + 479079680.

It is an arithmetic number, because the mean of its divisors is an integer number (3699065395350).

Almost surely, 2^{231040021313430} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231040021313430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355110277953600).

231040021313430 is an abundant number, since it is smaller than the sum of its proper divisors (479180534593770).

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

231040021313430 is a wasteful number, since it uses less digits than its factorization.

231040021313430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508759 (or 508756 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 231040021313430 its reverse (34313120040132), we get a palindrome (265353141353562).

The spelling of 231040021313430 in words is "two hundred thirty-one trillion, forty billion, twenty-one million, three hundred thirteen thousand, four hundred thirty".