2113431300 has 54 divisors (see below), whose sum is σ = 6624435818. Its totient is φ = 563581440.

The previous prime is 2113431277. The next prime is 2113431311. The reversal of 2113431300 is 31343112.

2113431300 is a `hidden beast` number, since 21 + 1 + 343 + 1 + 300 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 35712576 + 2077718724 = 5976^2 + 45582^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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 17 ways as a sum of consecutive naturals, for example, 1173229 + ... + 1175028.

Almost surely, 2^2113431300 is an apocalyptic number.

2113431300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2113431300 is an abundant number, since it is smaller than the sum of its proper divisors (4511004518).

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

2113431300 is a wasteful number, since it uses less digits than its factorization.

2113431300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348277 (or 2348267 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2113431300 is about 45972.0708691701. The cubic root of 2113431300 is about 1283.3034988660.

Adding to 2113431300 its reverse (31343112), we get a palindrome (2144774412).

The spelling of 2113431300 in words is "two billion, one hundred thirteen million, four hundred thirty-one thousand, three hundred".