2100423113 has 4 divisors (see below), whose sum is σ = 2104960128. Its totient is φ = 2095886100.

The previous prime is 2100423103. The next prime is 2100423119. The reversal of 2100423113 is 3113240012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2100423113 - 2²⁴ = 2083645897 is a prime.

It is a super-2 number, since 2×2100423113² = 8823554507249221538, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2100423091 and 2100423100.

It is not an unprimeable number, because it can be changed into a prime (2100423119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2267813 + ... + 2268738.

It is an arithmetic number, because the mean of its divisors is an integer number (526240032).

Almost surely, 2^2100423113 is an apocalyptic number.

It is an amenable number.

2100423113 is a deficient number, since it is larger than the sum of its proper divisors (4537015).

2100423113 is an equidigital number, since it uses as much as digits as its factorization.

2100423113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4537014.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2100423113 is about 45830.3732583535. The cubic root of 2100423113 is about 1280.6651639250.

Adding to 2100423113 its reverse (3113240012), we get a palindrome (5213663125).

The spelling of 2100423113 in words is "two billion, one hundred million, four hundred twenty-three thousand, one hundred thirteen".