111234456779 has 4 divisors (see below), whose sum is σ = 111251900760. Its totient is φ = 111217012800.

The previous prime is 111234456701. The next prime is 111234456803. The reversal of 111234456779 is 977654432111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 977654432111 = 7 ⋅139664918873.

It is a cyclic number.

It is not a de Polignac number, because 111234456779 - 2¹⁶ = 111234391243 is a prime.

It is a super-3 number, since 3×111234456779³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (111234456079) 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, 8712422 + ... + 8725179.

It is an arithmetic number, because the mean of its divisors is an integer number (27812975190).

Almost surely, 2^111234456779 is an apocalyptic number.

111234456779 is a deficient number, since it is larger than the sum of its proper divisors (17443981).

111234456779 is an equidigital number, since it uses as much as digits as its factorization.

111234456779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17443980.

The product of its digits is 1270080, while the sum is 50.

The spelling of 111234456779 in words is "one hundred eleven billion, two hundred thirty-four million, four hundred fifty-six thousand, seven hundred seventy-nine".