111311100023 has 2 divisors, whose sum is σ = 111311100024. Its totient is φ = 111311100022.

The previous prime is 111311100007. The next prime is 111311100037. The reversal of 111311100023 is 320001113111.

It is a happy number.

It is an a-pointer prime, because the next prime (111311100037) can be obtained adding 111311100023 to its sum of digits (14).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111311100023 - 2⁴ = 111311100007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111311099980 and 111311100007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111311100623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55655550011 + 55655550012.

It is an arithmetic number, because the mean of its divisors is an integer number (55655550012).

Almost surely, 2^111311100023 is an apocalyptic number.

111311100023 is a deficient number, since it is larger than the sum of its proper divisors (1).

111311100023 is an equidigital number, since it uses as much as digits as its factorization.

111311100023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 111311100023 its reverse (320001113111), we get a palindrome (431312213134).

The spelling of 111311100023 in words is "one hundred eleven billion, three hundred eleven million, one hundred thousand, twenty-three".