13111511301431 has 8 divisors (see below), whose sum is σ = 13346006922240. Its totient is φ = 12877424567928.

The previous prime is 13111511301403. The next prime is 13111511301451. The reversal of 13111511301431 is 13410311511131.

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-13111511301431 is a prime.

It is a super-2 number, since 2×13111511301431² (a number of 27 digits) contains 22 as substring.

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 13111511301431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111511301451) 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, 102157121 + ... + 102285386.

It is an arithmetic number, because the mean of its divisors is an integer number (1668250865280).

Almost surely, 2^{13111511301431} is an apocalyptic number.

13111511301431 is a deficient number, since it is larger than the sum of its proper divisors (234495620809).

13111511301431 is a wasteful number, since it uses less digits than its factorization.

13111511301431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204443653.

The product of its (nonzero) digits is 540, while the sum is 26.

Adding to 13111511301431 its reverse (13410311511131), we get a palindrome (26521822812562).

The spelling of 13111511301431 in words is "thirteen trillion, one hundred eleven billion, five hundred eleven million, three hundred one thousand, four hundred thirty-one".