111494279951 has 4 divisors (see below), whose sum is σ = 111624379152. Its totient is φ = 111364180752.

The previous prime is 111494279917. The next prime is 111494279989. The reversal of 111494279951 is 159972494111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 159972494111 = 541 ⋅295697771.

It is a cyclic number.

It is not a de Polignac number, because 111494279951 - 2¹⁰ = 111494278927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111494279893 and 111494279902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111494279651) 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, 65048315 + ... + 65050028.

It is an arithmetic number, because the mean of its divisors is an integer number (27906094788).

Almost surely, 2^111494279951 is an apocalyptic number.

111494279951 is a deficient number, since it is larger than the sum of its proper divisors (130099201).

111494279951 is an equidigital number, since it uses as much as digits as its factorization.

111494279951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130099200.

The product of its digits is 816480, while the sum is 53.

The spelling of 111494279951 in words is "one hundred eleven billion, four hundred ninety-four million, two hundred seventy-nine thousand, nine hundred fifty-one".