13042819431 has 12 divisors (see below), whose sum is σ = 18959627752. Its totient is φ = 8639828496.

The previous prime is 13042819429. The next prime is 13042819457. The reversal of 13042819431 is 13491824031.

13042819431 is a `hidden beast` number, since 13 + 0 + 428 + 194 + 31 = 666.

It is not a de Polignac number, because 13042819431 - 2¹ = 13042819429 is a prime.

It is a super-2 number, since 2×13042819431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13042819831) 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, 4613881 + ... + 4616706.

Almost surely, 2^13042819431 is an apocalyptic number.

13042819431 is a deficient number, since it is larger than the sum of its proper divisors (5916808321).

13042819431 is a wasteful number, since it uses less digits than its factorization.

13042819431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9230750 (or 9230747 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 13042819431 in words is "thirteen billion, forty-two million, eight hundred nineteen thousand, four hundred thirty-one".