13111431540435 has 24 divisors (see below), whose sum is σ = 22732467011280. Its totient is φ = 6990921742272.

The previous prime is 13111431540413. The next prime is 13111431540463. The reversal of 13111431540435 is 53404513411131.

It is a happy number.

13111431540435 is a `hidden beast` number, since 1 + 31 + 1 + 1 + 43 + 1 + 540 + 43 + 5 = 666.

It is not a de Polignac number, because 13111431540435 - 2¹⁶ = 13111431474899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13111431540435.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38196945 + ... + 38538674.

It is an arithmetic number, because the mean of its divisors is an integer number (947186125470).

Almost surely, 2^{13111431540435} is an apocalyptic number.

13111431540435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13111431540435 is a deficient number, since it is larger than the sum of its proper divisors (9621035470845).

13111431540435 is a wasteful number, since it uses less digits than its factorization.

13111431540435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76739427 (or 76739424 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

Adding to 13111431540435 its reverse (53404513411131), we get a palindrome (66515944951566).

The spelling of 13111431540435 in words is "thirteen trillion, one hundred eleven billion, four hundred thirty-one million, five hundred forty thousand, four hundred thirty-five".