13140431032442 has 32 divisors (see below), whose sum is σ = 23110155798912. Its totient is φ = 5487546576384.

The previous prime is 13140431032373. The next prime is 13140431032447. The reversal of 13140431032442 is 24423013404131.

It is a junction number, because it is equal to n+sod(n) for n = 13140431032399 and 13140431032408.

It is not an unprimeable number, because it can be changed into a prime (13140431032447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77370383 + ... + 77540034.

It is an arithmetic number, because the mean of its divisors is an integer number (722192368716).

Almost surely, 2^{13140431032442} is an apocalyptic number.

13140431032442 is a deficient number, since it is larger than the sum of its proper divisors (9969724766470).

13140431032442 is a wasteful number, since it uses less digits than its factorization.

13140431032442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154910582.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 13140431032442 its reverse (24423013404131), we get a palindrome (37563444436573).

The spelling of 13140431032442 in words is "thirteen trillion, one hundred forty billion, four hundred thirty-one million, thirty-two thousand, four hundred forty-two".