13201431312511 has 8 divisors (see below), whose sum is σ = 14835053247840. Its totient is φ = 11656113265632.

The previous prime is 13201431312469. The next prime is 13201431312541. The reversal of 13201431312511 is 11521313410231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13201431312511 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13201431312511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13201431312541) 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, 22075971796 + ... + 22075972393.

It is an arithmetic number, because the mean of its divisors is an integer number (1854381655980).

Almost surely, 2^{13201431312511} is an apocalyptic number.

13201431312511 is a deficient number, since it is larger than the sum of its proper divisors (1633621935329).

13201431312511 is a wasteful number, since it uses less digits than its factorization.

13201431312511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44151944225.

The product of its (nonzero) digits is 2160, while the sum is 28.

Adding to 13201431312511 its reverse (11521313410231), we get a palindrome (24722744722742).

The spelling of 13201431312511 in words is "thirteen trillion, two hundred one billion, four hundred thirty-one million, three hundred twelve thousand, five hundred eleven".