12131331313011 has 4 divisors (see below), whose sum is σ = 16175108417352. Its totient is φ = 8087554208672.

The previous prime is 12131331313009. The next prime is 12131331313037. The reversal of 12131331313011 is 11031313313121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12131331313011 - 2¹ = 12131331313009 is a prime.

It is a super-2 number, since 2×12131331313011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12131331303011) 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, 2021888552166 + ... + 2021888552171.

It is an arithmetic number, because the mean of its divisors is an integer number (4043777104338).

Almost surely, 2^{12131331313011} is an apocalyptic number.

12131331313011 is a deficient number, since it is larger than the sum of its proper divisors (4043777104341).

12131331313011 is an equidigital number, since it uses as much as digits as its factorization.

12131331313011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4043777104340.

The product of its (nonzero) digits is 486, while the sum is 24.

Adding to 12131331313011 its reverse (11031313313121), we get a palindrome (23162644626132).

The spelling of 12131331313011 in words is "twelve trillion, one hundred thirty-one billion, three hundred thirty-one million, three hundred thirteen thousand, eleven".