111620623 has 16 divisors (see below), whose sum is σ = 122791680. Its totient is φ = 100993536.

The previous prime is 111620567. The next prime is 111620627. The reversal of 111620623 is 326026111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111620623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111620594 and 111620603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111620627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183586 + ... + 184192.

It is an arithmetic number, because the mean of its divisors is an integer number (7674480).

Almost surely, 2^111620623 is an apocalyptic number.

111620623 is a deficient number, since it is larger than the sum of its proper divisors (11171057).

111620623 is a wasteful number, since it uses less digits than its factorization.

111620623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 111620623 is about 10565.0661616480. The cubic root of 111620623 is about 481.4835796905.

Adding to 111620623 its reverse (326026111), we get a palindrome (437646734).

The spelling of 111620623 in words is "one hundred eleven million, six hundred twenty thousand, six hundred twenty-three".