12131133311 has 32 divisors (see below), whose sum is σ = 13934592000. Its totient is φ = 10459836000.

The previous prime is 12131133307. The next prime is 12131133349. The reversal of 12131133311 is 11333113121.

It is a cyclic number.

It is not a de Polignac number, because 12131133311 - 2² = 12131133307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131133361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8670590 + ... + 8671988.

It is an arithmetic number, because the mean of its divisors is an integer number (435456000).

Almost surely, 2^12131133311 is an apocalyptic number.

12131133311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12131133311 is a deficient number, since it is larger than the sum of its proper divisors (1803458689).

12131133311 is a wasteful number, since it uses less digits than its factorization.

12131133311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931.

The product of its digits is 162, while the sum is 20.

Adding to 12131133311 its reverse (11333113121), we get a palindrome (23464246432).

The spelling of 12131133311 in words is "twelve billion, one hundred thirty-one million, one hundred thirty-three thousand, three hundred eleven".