231000302100 has 72 divisors (see below), whose sum is σ = 677516566720. Its totient is φ = 60756238080.

The previous prime is 231000302087. The next prime is 231000302147. The reversal of 231000302100 is 1203000132.

It is a happy number.

It is a super-2 number, since 2×231000302100² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 5252080 + ... + 5295879.

Almost surely, 2^231000302100 is an apocalyptic number.

231000302100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231000302100 is an abundant number, since it is smaller than the sum of its proper divisors (446516264620).

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

231000302100 is a wasteful number, since it uses less digits than its factorization.

231000302100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10548049 (or 10548042 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 231000302100 its reverse (1203000132), we get a palindrome (232203302232).

The spelling of 231000302100 in words is "two hundred thirty-one billion, three hundred two thousand, one hundred".