2100131 has 4 divisors (see below), whose sum is σ = 2291064. Its totient is φ = 1909200.

The previous prime is 2100121. The next prime is 2100167. The reversal of 2100131 is 1310012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100131 is a prime.

It is a super-2 number, since 2×2100131² = 8821100434322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100121) 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, 95450 + ... + 95471.

It is an arithmetic number, because the mean of its divisors is an integer number (572766).

2^2100131 is an apocalyptic number.

2100131 is a deficient number, since it is larger than the sum of its proper divisors (190933).

2100131 is a wasteful number, since it uses less digits than its factorization.

2100131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190932.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 2100131 is about 1449.1828732082. The cubic root of 2100131 is about 128.0605792350.

Adding to 2100131 its reverse (1310012), we get a palindrome (3410143).

The spelling of 2100131 in words is "two million, one hundred thousand, one hundred thirty-one".