111255623 has 4 divisors (see below), whose sum is σ = 116092848. Its totient is φ = 106418400.

The previous prime is 111255611. The next prime is 111255631. The reversal of 111255623 is 326552111.

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 111255623 - 2¹² = 111251527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111255592 and 111255601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111255653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2418578 + ... + 2418623.

It is an arithmetic number, because the mean of its divisors is an integer number (29023212).

Almost surely, 2^111255623 is an apocalyptic number.

111255623 is a deficient number, since it is larger than the sum of its proper divisors (4837225).

111255623 is an equidigital number, since it uses as much as digits as its factorization.

111255623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4837224.

The product of its digits is 1800, while the sum is 26.

The square root of 111255623 is about 10547.7781072603. The cubic root of 111255623 is about 480.9581886856.

The spelling of 111255623 in words is "one hundred eleven million, two hundred fifty-five thousand, six hundred twenty-three".