111311102023 has 6 divisors (see below), whose sum is σ = 122350219712. Its totient is φ = 101191910820.

The previous prime is 111311102017. The next prime is 111311102029. The reversal of 111311102023 is 320201113111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111311102017) and next prime (111311102029).

It is not a de Polignac number, because 111311102023 - 2⁹ = 111311101511 is a prime.

It is a super-2 number, since 2×111311102023² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111311101988 and 111311102006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111311102029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 459963111 + ... + 459963352.

Almost surely, 2^111311102023 is an apocalyptic number.

111311102023 is a deficient number, since it is larger than the sum of its proper divisors (11039117689).

111311102023 is an equidigital number, since it uses as much as digits as its factorization.

111311102023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919926485 (or 919926474 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 111311102023 its reverse (320201113111), we get a palindrome (431512215134).

The spelling of 111311102023 in words is "one hundred eleven billion, three hundred eleven million, one hundred two thousand, twenty-three".