2321123231000 has 128 divisors (see below), whose sum is σ = 6267614146560. Its totient is φ = 788087088000.

The previous prime is 2321123230883. The next prime is 2321123231087. The reversal of 2321123231000 is 1323211232.

It is a super-2 number, since 2×2321123231000² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 888656 + ... + 2330655.

It is an arithmetic number, because the mean of its divisors is an integer number (48965735520).

Almost surely, 2^{2321123231000} is an apocalyptic number.

2321123231000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2321123231000 is an abundant number, since it is smaller than the sum of its proper divisors (3946490915560).

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

2321123231000 is a wasteful number, since it uses less digits than its factorization.

2321123231000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3219442 (or 3219428 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2321123231000 its reverse (1323211232), we get a palindrome (2322446442232).

The spelling of 2321123231000 in words is "two trillion, three hundred twenty-one billion, one hundred twenty-three million, two hundred thirty-one thousand".