2143113100 has 18 divisors (see below), whose sum is σ = 4650555644. Its totient is φ = 857245200.

The previous prime is 2143113073. The next prime is 2143113107. The reversal of 2143113100 is 13113412.

It is a super-2 number, since 2×2143113100² = 9185867518783220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2143113107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10715466 + ... + 10715665.

Almost surely, 2^2143113100 is an apocalyptic number.

2143113100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2143113100 is an abundant number, since it is smaller than the sum of its proper divisors (2507442544).

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

2143113100 is a wasteful number, since it uses less digits than its factorization.

2143113100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21431145 (or 21431138 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2143113100 is about 46293.7695591966. The cubic root of 2143113100 is about 1289.2833188335.

Adding to 2143113100 its reverse (13113412), we get a palindrome (2156226512).

The spelling of 2143113100 in words is "two billion, one hundred forty-three million, one hundred thirteen thousand, one hundred".