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231320023000000 = 26561159935107
BaseRepresentation
bin110100100110001001100011…
…110011001110001111000000
31010100000222102010111001121021
4310212021203303032033000
5220304421401342000000
62135550541310435224
766503214545254624
oct6446114363161700
91110028363431537
10231320023000000
11677842a8534880
1221b3b453802b14
139c0c4ccb93c4c
144119d3d90b184
151bb2270a4e11a
hexd26263cce3c0

231320023000000 has 392 divisors, whose sum is σ = 626998911811200. Its totient is φ = 83973552000000.

The previous prime is 231320022999991. The next prime is 231320023000009. The reversal of 231320023000000 is 320023132.

It is an interprime number because it is at equal distance from previous prime (231320022999991) and next prime (231320023000009).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231320023000009) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 6588982447 + ... + 6589017553.

Almost surely, 2231320023000000 is an apocalyptic number.

231320023000000 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 231320023000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313499455905600).

231320023000000 is an abundant number, since it is smaller than the sum of its proper divisors (395678888811200).

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

231320023000000 is an frugal number, since it uses more digits than its factorization.

231320023000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35759 (or 35724 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 231320023000000 its reverse (320023132), we get a palindrome (231320343023132).

The spelling of 231320023000000 in words is "two hundred thirty-one trillion, three hundred twenty billion, twenty-three million", and thus it is an aban number.