11117765504831 has 4 divisors (see below), whose sum is σ = 11118210436200. Its totient is φ = 11117320573464.

The previous prime is 11117765504819. The next prime is 11117765504893. The reversal of 11117765504831 is 13840556771111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11117765504831 - 2⁴² = 6719718993727 is a prime.

It is a super-2 number, since 2×11117765504831² (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 11117765504831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11117765504801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222428201 + ... + 222478178.

It is an arithmetic number, because the mean of its divisors is an integer number (2779552609050).

Almost surely, 2^{11117765504831} is an apocalyptic number.

11117765504831 is a deficient number, since it is larger than the sum of its proper divisors (444931369).

11117765504831 is an equidigital number, since it uses as much as digits as its factorization.

11117765504831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444931368.

The product of its (nonzero) digits is 705600, while the sum is 50.

The spelling of 11117765504831 in words is "eleven trillion, one hundred seventeen billion, seven hundred sixty-five million, five hundred four thousand, eight hundred thirty-one".