12131433033021 has 12 divisors (see below), whose sum is σ = 17810446311580. Its totient is φ = 7955038054080.

The previous prime is 12131433032987. The next prime is 12131433033053. The reversal of 12131433033021 is 12033033413121.

12131433033021 is a `hidden beast` number, since 1 + 2 + 13 + 1 + 43 + 303 + 302 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4436967300921 + 7694465732100 = 2106411^2 + 2773890^2 .

It is not a de Polignac number, because 12131433033021 - 2¹⁹ = 12131432508733 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 (12131433033121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11048663416 + ... + 11048664513.

Almost surely, 2^{12131433033021} is an apocalyptic number.

It is an amenable number.

12131433033021 is a deficient number, since it is larger than the sum of its proper divisors (5679013278559).

12131433033021 is a wasteful number, since it uses less digits than its factorization.

12131433033021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22097327996 (or 22097327993 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 12131433033021 its reverse (12033033413121), we get a palindrome (24164466446142).

The spelling of 12131433033021 in words is "twelve trillion, one hundred thirty-one billion, four hundred thirty-three million, thirty-three thousand, twenty-one".