111023231623 has 2 divisors, whose sum is σ = 111023231624. Its totient is φ = 111023231622.

The previous prime is 111023231609. The next prime is 111023231629. The reversal of 111023231623 is 326132320111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111023231623 - 2⁵ = 111023231591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111023231629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55511615811 + 55511615812.

It is an arithmetic number, because the mean of its divisors is an integer number (55511615812).

Almost surely, 2^111023231623 is an apocalyptic number.

111023231623 is a deficient number, since it is larger than the sum of its proper divisors (1).

111023231623 is an equidigital number, since it uses as much as digits as its factorization.

111023231623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 111023231623 its reverse (326132320111), we get a palindrome (437155551734).

The spelling of 111023231623 in words is "one hundred eleven billion, twenty-three million, two hundred thirty-one thousand, six hundred twenty-three".