111203123023 has 2 divisors, whose sum is σ = 111203123024. Its totient is φ = 111203123022.

The previous prime is 111203123011. The next prime is 111203123041. The reversal of 111203123023 is 320321302111.

It is a weak prime.

It is an emirp because it is prime and its reverse (320321302111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111203123023 is a prime.

It is a super-2 number, since 2×111203123023² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111203123093) 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, 55601561511 + 55601561512.

It is an arithmetic number, because the mean of its divisors is an integer number (55601561512).

Almost surely, 2^111203123023 is an apocalyptic number.

111203123023 is a deficient number, since it is larger than the sum of its proper divisors (1).

111203123023 is an equidigital number, since it uses as much as digits as its factorization.

111203123023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 111203123023 its reverse (320321302111), we get a palindrome (431524425134).

The spelling of 111203123023 in words is "one hundred eleven billion, two hundred three million, one hundred twenty-three thousand, twenty-three".