12053111331 has 4 divisors (see below), whose sum is σ = 16070815112. Its totient is φ = 8035407552.

The previous prime is 12053111297. The next prime is 12053111351. The reversal of 12053111331 is 13311135021.

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

It is not a de Polignac number, because 12053111331 - 2¹¹ = 12053109283 is a prime.

It is a super-2 number, since 2×12053111331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12053111298 and 12053111307.

It is not an unprimeable number, because it can be changed into a prime (12053111351) 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, 2008851886 + ... + 2008851891.

It is an arithmetic number, because the mean of its divisors is an integer number (4017703778).

Almost surely, 2^12053111331 is an apocalyptic number.

12053111331 is a deficient number, since it is larger than the sum of its proper divisors (4017703781).

12053111331 is an equidigital number, since it uses as much as digits as its factorization.

12053111331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4017703780.

The product of its (nonzero) digits is 270, while the sum is 21.

Adding to 12053111331 its reverse (13311135021), we get a palindrome (25364246352).

The spelling of 12053111331 in words is "twelve billion, fifty-three million, one hundred eleven thousand, three hundred thirty-one".