111201011023 has 2 divisors, whose sum is σ = 111201011024. Its totient is φ = 111201011022.

The previous prime is 111201011003. The next prime is 111201011093. The reversal of 111201011023 is 320110102111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111201011023 - 2²⁵ = 111167456591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111201010994 and 111201011012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111201011003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55600505511 + 55600505512.

It is an arithmetic number, because the mean of its divisors is an integer number (55600505512).

Almost surely, 2^111201011023 is an apocalyptic number.

111201011023 is a deficient number, since it is larger than the sum of its proper divisors (1).

111201011023 is an equidigital number, since it uses as much as digits as its factorization.

111201011023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 111201011023 its reverse (320110102111), we get a palindrome (431311113134).

The spelling of 111201011023 in words is "one hundred eleven billion, two hundred one million, eleven thousand, twenty-three".