231303100000 has 144 divisors (see below), whose sum is σ = 650500302816. Its totient is φ = 79303680000.

The previous prime is 231303099997. The next prime is 231303100073. The reversal of 231303100000 is 1303132.

It is a super-2 number, since 2×231303100000² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 534784 + ... + 865216.

It is an arithmetic number, because the mean of its divisors is an integer number (4517363214).

Almost surely, 2^231303100000 is an apocalyptic number.

231303100000 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 231303100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325250151408).

231303100000 is an abundant number, since it is smaller than the sum of its proper divisors (419197202816).

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

231303100000 is an frugal number, since it uses more digits than its factorization.

231303100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330475 (or 330447 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 231303100000 its reverse (1303132), we get a palindrome (231304403132).

The spelling of 231303100000 in words is "two hundred thirty-one billion, three hundred three million, one hundred thousand".