111311213023 has 8 divisors (see below), whose sum is σ = 113904424656. Its totient is φ = 108718209600.

The previous prime is 111311212997. The next prime is 111311213033. The reversal of 111311213023 is 320312113111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111311213023 - 2¹³ = 111311204831 is a prime.

It is a super-2 number, since 2×111311213023² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111311213033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1737603 + ... + 1800523.

It is an arithmetic number, because the mean of its divisors is an integer number (14238053082).

Almost surely, 2^111311213023 is an apocalyptic number.

111311213023 is a deficient number, since it is larger than the sum of its proper divisors (2593211633).

111311213023 is an equidigital number, since it uses as much as digits as its factorization.

111311213023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104105.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 111311213023 its reverse (320312113111), we get a palindrome (431623326134).

The spelling of 111311213023 in words is "one hundred eleven billion, three hundred eleven million, two hundred thirteen thousand, twenty-three".