111663430515101 has 4 divisors (see below), whose sum is σ = 111677238292512. Its totient is φ = 111649622737692.

The previous prime is 111663430515059. The next prime is 111663430515173. The reversal of 111663430515101 is 101515034366111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111663430515101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111663430515001) 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, 6903876575 + ... + 6903892748.

It is an arithmetic number, because the mean of its divisors is an integer number (27919309573128).

Almost surely, 2^{111663430515101} is an apocalyptic number.

It is an amenable number.

111663430515101 is a deficient number, since it is larger than the sum of its proper divisors (13807777411).

111663430515101 is an equidigital number, since it uses as much as digits as its factorization.

111663430515101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13807777410.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 111663430515101 in words is "one hundred eleven trillion, six hundred sixty-three billion, four hundred thirty million, five hundred fifteen thousand, one hundred one".