11131001312 has 12 divisors (see below), whose sum is σ = 21914158896. Its totient is φ = 5565500640.

The previous prime is 11131001309. The next prime is 11131001351. The reversal of 11131001312 is 21310013111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173921864 + ... + 173921927.

It is an arithmetic number, because the mean of its divisors is an integer number (1826179908).

Almost surely, 2^11131001312 is an apocalyptic number.

It is an amenable number.

11131001312 is a deficient number, since it is larger than the sum of its proper divisors (10783157584).

11131001312 is an equidigital number, since it uses as much as digits as its factorization.

11131001312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347843801 (or 347843793 counting only the distinct ones).

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

Adding to 11131001312 its reverse (21310013111), we get a palindrome (32441014423).

The spelling of 11131001312 in words is "eleven billion, one hundred thirty-one million, one thousand, three hundred twelve".