12131111201 has 16 divisors (see below), whose sum is σ = 13613092416. Its totient is φ = 10714560000.

The previous prime is 12131111189. The next prime is 12131111207. The reversal of 12131111201 is 10211113121.

It is a cyclic number.

It is not a de Polignac number, because 12131111201 - 2¹⁴ = 12131094817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12131111207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52886 + ... + 164496.

It is an arithmetic number, because the mean of its divisors is an integer number (850818276).

Almost surely, 2^12131111201 is an apocalyptic number.

12131111201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12131111201 is a deficient number, since it is larger than the sum of its proper divisors (1481981215).

12131111201 is a wasteful number, since it uses less digits than its factorization.

12131111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111904.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 12131111201 its reverse (10211113121), we get a palindrome (22342224322).

The spelling of 12131111201 in words is "twelve billion, one hundred thirty-one million, one hundred eleven thousand, two hundred one".