2100000231 has 48 divisors (see below), whose sum is σ = 3582851584. Its totient is φ = 1160194752.

The previous prime is 2100000209. The next prime is 2100000263. The reversal of 2100000231 is 1320000012.

It is a happy number.

It is not a de Polignac number, because 2100000231 - 2¹⁰ = 2099999207 is a prime.

It is a super-2 number, since 2×2100000231² = 8820001940400106722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

2100000231 is a modest number, since divided by 231 gives 21 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100001231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 377190 + ... + 382716.

Almost surely, 2^2100000231 is an apocalyptic number.

2100000231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2100000231 is a deficient number, since it is larger than the sum of its proper divisors (1482851353).

2100000231 is a wasteful number, since it uses less digits than its factorization.

2100000231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5740 (or 5737 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2100000231 is about 45825.7594699750. The cubic root of 2100000231 is about 1280.5792119421.

Adding to 2100000231 its reverse (1320000012), we get a palindrome (3420000243).

The spelling of 2100000231 in words is "two billion, one hundred million, two hundred thirty-one", and thus it is an aban number.