103111623 has 10 divisors (see below), whose sum is σ = 154031064. Its totient is φ = 68741028.

The previous prime is 103111583. The next prime is 103111627. The reversal of 103111623 is 326111301.

103111623 is a `hidden beast` number, since 1 + 0 + 31 + 11 + 623 = 666.

It is not a de Polignac number, because 103111623 - 2⁸ = 103111367 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103111596 and 103111605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103111627) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 636411 + ... + 636572.

Almost surely, 2^103111623 is an apocalyptic number.

103111623 is a deficient number, since it is larger than the sum of its proper divisors (50919441).

103111623 is an equidigital number, since it uses as much as digits as its factorization.

103111623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272995 (or 1272986 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 103111623 is about 10154.3893464846. The cubic root of 103111623 is about 468.9240863791.

Adding to 103111623 its reverse (326111301), we get a palindrome (429222924).

The spelling of 103111623 in words is "one hundred three million, one hundred eleven thousand, six hundred twenty-three".