111623723 has 2 divisors, whose sum is σ = 111623724. Its totient is φ = 111623722.

The previous prime is 111623719. The next prime is 111623737. The reversal of 111623723 is 327326111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111623723 - 2² = 111623719 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 111623692 and 111623701.

It is not a weakly prime, because it can be changed into another prime (111623023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55811861 + 55811862.

It is an arithmetic number, because the mean of its divisors is an integer number (55811862).

Almost surely, 2^111623723 is an apocalyptic number.

111623723 is a deficient number, since it is larger than the sum of its proper divisors (1).

111623723 is an equidigital number, since it uses as much as digits as its factorization.

111623723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 26.

The square root of 111623723 is about 10565.2128705483. The cubic root of 111623723 is about 481.4880370069.

Adding to 111623723 its reverse (327326111), we get a palindrome (438949834).

The spelling of 111623723 in words is "one hundred eleven million, six hundred twenty-three thousand, seven hundred twenty-three".