111101001023 has 2 divisors, whose sum is σ = 111101001024. Its totient is φ = 111101001022.

The previous prime is 111101001013. The next prime is 111101001031. The reversal of 111101001023 is 320100101111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111101001023 - 2⁴ = 111101001007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111101000995 and 111101001013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111101001013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550500511 + 55550500512.

It is an arithmetic number, because the mean of its divisors is an integer number (55550500512).

Almost surely, 2^111101001023 is an apocalyptic number.

111101001023 is a deficient number, since it is larger than the sum of its proper divisors (1).

111101001023 is an equidigital number, since it uses as much as digits as its factorization.

111101001023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 111101001023 its reverse (320100101111), we get a palindrome (431201102134).

The spelling of 111101001023 in words is "one hundred eleven billion, one hundred one million, one thousand, twenty-three".