231433091936280 has 1280 divisors, whose sum is σ = 856689571584000. Its totient is φ = 55694564610048.

The previous prime is 231433091936213. The next prime is 231433091936317. The reversal of 231433091936280 is 82639190334132.

231433091936280 is a `hidden beast` number, since 2 + 3 + 1 + 4 + 3 + 3 + 0 + 9 + 1 + 9 + 3 + 628 + 0 = 666.

It is a super-3 number, since 3×231433091936280³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 168560153674 + ... + 168560155046.

It is an arithmetic number, because the mean of its divisors is an integer number (669288727800).

Almost surely, 2^{231433091936280} is an apocalyptic number.

231433091936280 is a gapful number since it is divisible by the number (20) 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 231433091936280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (428344785792000).

231433091936280 is an abundant number, since it is smaller than the sum of its proper divisors (625256479647720).

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

231433091936280 is a wasteful number, since it uses less digits than its factorization.

231433091936280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950 (or 1937 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 54.

The spelling of 231433091936280 in words is "two hundred thirty-one trillion, four hundred thirty-three billion, ninety-one million, nine hundred thirty-six thousand, two hundred eighty".