12013131011 has 12 divisors (see below), whose sum is σ = 13991485392. Its totient is φ = 10284423408.

The previous prime is 12013130981. The next prime is 12013131037. The reversal of 12013131011 is 11013131021.

It is a happy number.

It is not a de Polignac number, because 12013131011 - 2⁶ = 12013130947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12013131061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108620 + ... + 189273.

It is an arithmetic number, because the mean of its divisors is an integer number (1165957116).

Almost surely, 2^12013131011 is an apocalyptic number.

12013131011 is a deficient number, since it is larger than the sum of its proper divisors (1978354381).

12013131011 is an equidigital number, since it uses as much as digits as its factorization.

12013131011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298730 (or 298723 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 12013131011 its reverse (11013131021), we get a palindrome (23026262032).

The spelling of 12013131011 in words is "twelve billion, thirteen million, one hundred thirty-one thousand, eleven".