231023113033000 has 128 divisors (see below), whose sum is σ = 551130645330720. Its totient is φ = 90610255257600.

The previous prime is 231023113032983. The next prime is 231023113033019. The reversal of 231023113033000 is 330311320132.

It can be written as a sum of positive squares in 16 ways, for example, as 41096843705124 + 189926269327876 = 6410682^2 + 13781374^2 .

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, 85429624 + ... + 88092376.

Almost surely, 2^{231023113033000} is an apocalyptic number.

231023113033000 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 231023113033000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275565322665360).

231023113033000 is an abundant number, since it is smaller than the sum of its proper divisors (320107532297720).

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

231023113033000 is a wasteful number, since it uses less digits than its factorization.

231023113033000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664464 (or 2664450 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 231023113033000 its reverse (330311320132), we get a palindrome (231353424353132).

The spelling of 231023113033000 in words is "two hundred thirty-one trillion, twenty-three billion, one hundred thirteen million, thirty-three thousand".