13043020442 has 16 divisors (see below), whose sum is σ = 20277656520. Its totient is φ = 6287035968.

The previous prime is 13043020439. The next prime is 13043020447. The reversal of 13043020442 is 24402034031.

It can be written as a sum of positive squares in 4 ways, for example, as 12703318681 + 339701761 = 112709^2 + 18431^2 .

It is not an unprimeable number, because it can be changed into a prime (13043020447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800453 + ... + 816584.

Almost surely, 2^13043020442 is an apocalyptic number.

13043020442 is a deficient number, since it is larger than the sum of its proper divisors (7234636078).

13043020442 is a wasteful number, since it uses less digits than its factorization.

13043020442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617185.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 13043020442 its reverse (24402034031), we get a palindrome (37445054473).

The spelling of 13043020442 in words is "thirteen billion, forty-three million, twenty thousand, four hundred forty-two".