2131120011 has 4 divisors (see below), whose sum is σ = 2841493352. Its totient is φ = 1420746672.

The previous prime is 2131120001. The next prime is 2131120021. The reversal of 2131120011 is 1100211312.

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

It is an interprime number because it is at equal distance from previous prime (2131120001) and next prime (2131120021).

It is not a de Polignac number, because 2131120011 - 2⁵ = 2131119979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131120001) 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, 355186666 + ... + 355186671.

It is an arithmetic number, because the mean of its divisors is an integer number (710373338).

Almost surely, 2^2131120011 is an apocalyptic number.

2131120011 is a deficient number, since it is larger than the sum of its proper divisors (710373341).

2131120011 is an equidigital number, since it uses as much as digits as its factorization.

2131120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710373340.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 2131120011 is about 46164.0554002787. The cubic root of 2131120011 is about 1286.8738297523.

Adding to 2131120011 its reverse (1100211312), we get a palindrome (3231331323).

The spelling of 2131120011 in words is "two billion, one hundred thirty-one million, one hundred twenty thousand, eleven".