131210011 has 4 divisors (see below), whose sum is σ = 135442624. Its totient is φ = 126977400.

The previous prime is 131209997. The next prime is 131210021. The reversal of 131210011 is 110012131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110012131 = 4457 ⋅24683.

It is a cyclic number.

It is not a de Polignac number, because 131210011 - 2¹⁷ = 131078939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131210011.

It is not an unprimeable number, because it can be changed into a prime (131210021) 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, 2116260 + ... + 2116321.

It is an arithmetic number, because the mean of its divisors is an integer number (33860656).

Almost surely, 2^131210011 is an apocalyptic number.

131210011 is a deficient number, since it is larger than the sum of its proper divisors (4232613).

131210011 is an equidigital number, since it uses as much as digits as its factorization.

131210011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4232612.

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

The square root of 131210011 is about 11454.6938413910. The cubic root of 131210011 is about 508.1465608805.

Adding to 131210011 its reverse (110012131), we get a palindrome (241222142).

The spelling of 131210011 in words is "one hundred thirty-one million, two hundred ten thousand, eleven".