13155431021324 has 6 divisors (see below), whose sum is σ = 23022004287324. Its totient is φ = 6577715510660.

The previous prime is 13155431021323. The next prime is 13155431021329. The reversal of 13155431021324 is 42312013455131.

It is not an unprimeable number, because it can be changed into a prime (13155431021321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1644428877662 + ... + 1644428877669.

It is an arithmetic number, because the mean of its divisors is an integer number (3837000714554).

Almost surely, 2^{13155431021324} is an apocalyptic number.

It is an amenable number.

13155431021324 is a deficient number, since it is larger than the sum of its proper divisors (9866573266000).

13155431021324 is a wasteful number, since it uses less digits than its factorization.

13155431021324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3288857755335 (or 3288857755333 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 13155431021324 its reverse (42312013455131), we get a palindrome (55467444476455).

The spelling of 13155431021324 in words is "thirteen trillion, one hundred fifty-five billion, four hundred thirty-one million, twenty-one thousand, three hundred twenty-four".