2113203100 has 36 divisors (see below), whose sum is σ = 4618671400. Its totient is φ = 839194560.

The previous prime is 2113203091. The next prime is 2113203107. The reversal of 2113203100 is 13023112.

It is a super-2 number, since 2×2113203100² = 8931254683699220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113203107) 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, 62115 + ... + 89914.

Almost surely, 2^2113203100 is an apocalyptic number.

2113203100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2113203100 is an abundant number, since it is smaller than the sum of its proper divisors (2505468300).

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

2113203100 is a wasteful number, since it uses less digits than its factorization.

2113203100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152182 (or 152175 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2113203100 is about 45969.5888604630. The cubic root of 2113203100 is about 1283.2573085152.

Adding to 2113203100 its reverse (13023112), we get a palindrome (2126226212).

The spelling of 2113203100 in words is "two billion, one hundred thirteen million, two hundred three thousand, one hundred".