2131103100 has 108 divisors (see below), whose sum is σ = 7172733624. Its totient is φ = 487105920.

The previous prime is 2131103081. The next prime is 2131103123. The reversal of 2131103100 is 13011312.

It is a super-2 number, since 2×2131103100² = 9083200845659220000, which 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 57787 + ... + 87186.

Almost surely, 2^2131103100 is an apocalyptic number.

2131103100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131103100 is an abundant number, since it is smaller than the sum of its proper divisors (5041630524).

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

2131103100 is a wasteful number, since it uses less digits than its factorization.

2131103100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145004 (or 144990 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 2131103100 is about 46163.8722379308. The cubic root of 2131103100 is about 1286.8704258488.

Adding to 2131103100 its reverse (13011312), we get a palindrome (2144114412).

The spelling of 2131103100 in words is "two billion, one hundred thirty-one million, one hundred three thousand, one hundred".