13124204310442 has 4 divisors (see below), whose sum is σ = 19686306465666. Its totient is φ = 6562102155220.

The previous prime is 13124204310431. The next prime is 13124204310449. The reversal of 13124204310442 is 24401340242131.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 12970939107361 + 153265203081 = 3601519^2 + 391491^2 .

It is not an unprimeable number, because it can be changed into a prime (13124204310449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3281051077609 + ... + 3281051077612.

Almost surely, 2^{13124204310442} is an apocalyptic number.

13124204310442 is a deficient number, since it is larger than the sum of its proper divisors (6562102155224).

13124204310442 is an equidigital number, since it uses as much as digits as its factorization.

13124204310442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6562102155223.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 13124204310442 its reverse (24401340242131), we get a palindrome (37525544552573).

The spelling of 13124204310442 in words is "thirteen trillion, one hundred twenty-four billion, two hundred four million, three hundred ten thousand, four hundred forty-two".