111228450679 has 4 divisors (see below), whose sum is σ = 111910833976. Its totient is φ = 110546067384.

The previous prime is 111228450667. The next prime is 111228450701. The reversal of 111228450679 is 976054822111.

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 111228450679 - 2⁷ = 111228450551 is a prime.

It is a super-2 number, since 2×111228450679² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111228450649) 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, 341191404 + ... + 341191729.

It is an arithmetic number, because the mean of its divisors is an integer number (27977708494).

Almost surely, 2^111228450679 is an apocalyptic number.

111228450679 is a deficient number, since it is larger than the sum of its proper divisors (682383297).

111228450679 is an equidigital number, since it uses as much as digits as its factorization.

111228450679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682383296.

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 111228450679 in words is "one hundred eleven billion, two hundred twenty-eight million, four hundred fifty thousand, six hundred seventy-nine".