231123320202000 has 80 divisors (see below), whose sum is σ = 745141584350592. Its totient is φ = 61632885385600.

The previous prime is 231123320201993. The next prime is 231123320202007. The reversal of 231123320202000 is 202023321132.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (231123320201993) and next prime (231123320202007).

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (231123320202007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19260270684 + ... + 19260282683.

Almost surely, 2^{231123320202000} is an apocalyptic number.

231123320202000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231123320202000 is an abundant number, since it is smaller than the sum of its proper divisors (514018264148592).

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

231123320202000 is a wasteful number, since it uses less digits than its factorization.

231123320202000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38520553393 (or 38520553377 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 231123320202000 its reverse (202023321132), we get a palindrome (231325343523132).

The spelling of 231123320202000 in words is "two hundred thirty-one trillion, one hundred twenty-three billion, three hundred twenty million, two hundred two thousand".