2100131210 has 24 divisors (see below), whose sum is σ = 4015688940. Its totient is φ = 790636544.

The previous prime is 2100131207. The next prime is 2100131213. The reversal of 2100131210 is 121310012.

It is an interprime number because it is at equal distance from previous prime (2100131207) and next prime (2100131213).

It can be written as a sum of positive squares in 6 ways, for example, as 1710897769 + 389233441 = 41363^2 + 19729^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2100131191 and 2100131200.

It is not an unprimeable number, because it can be changed into a prime (2100131213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 360455 + ... + 366234.

Almost surely, 2^2100131210 is an apocalyptic number.

2100131210 is a deficient number, since it is larger than the sum of its proper divisors (1915557730).

2100131210 is a wasteful number, since it uses less digits than its factorization.

2100131210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726730 (or 726713 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2100131210 is about 45827.1885456658. The cubic root of 2100131210 is about 1280.6058350340.

Adding to 2100131210 its reverse (121310012), we get a palindrome (2221441222).

The spelling of 2100131210 in words is "two billion, one hundred million, one hundred thirty-one thousand, two hundred ten".