2100101131 has 4 divisors (see below), whose sum is σ = 2131445992. Its totient is φ = 2068756272.

The previous prime is 2100101117. The next prime is 2100101153. The reversal of 2100101131 is 1311010012.

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

It is a cyclic number.

It is not a de Polignac number, because 2100101131 - 2¹⁵ = 2100068363 is a prime.

It is a super-2 number, since 2×2100101131² = 8820849520854958322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100101111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15672330 + ... + 15672463.

It is an arithmetic number, because the mean of its divisors is an integer number (532861498).

Almost surely, 2^2100101131 is an apocalyptic number.

2100101131 is a deficient number, since it is larger than the sum of its proper divisors (31344861).

2100101131 is an equidigital number, since it uses as much as digits as its factorization.

2100101131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31344860.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 2100101131 is about 45826.8603659470. The cubic root of 2100101131 is about 1280.5997212054.

Adding to 2100101131 its reverse (1311010012), we get a palindrome (3411111143).

The spelling of 2100101131 in words is "two billion, one hundred million, one hundred one thousand, one hundred thirty-one".