111221111032023 has 16 divisors (see below), whose sum is σ = 151754931820800. Its totient is φ = 72417607901184.

The previous prime is 111221111032007. The next prime is 111221111032049. The reversal of 111221111032023 is 320230111122111.

It is not a de Polignac number, because 111221111032023 - 2⁴ = 111221111032007 is a prime.

It is a super-2 number, since 2×111221111032023² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111221111032723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30663723 + ... + 34098476.

It is an arithmetic number, because the mean of its divisors is an integer number (9484683238800).

Almost surely, 2^{111221111032023} is an apocalyptic number.

111221111032023 is a deficient number, since it is larger than the sum of its proper divisors (40533820788777).

111221111032023 is a wasteful number, since it uses less digits than its factorization.

111221111032023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64775558.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 111221111032023 its reverse (320230111122111), we get a palindrome (431451222154134).

The spelling of 111221111032023 in words is "one hundred eleven trillion, two hundred twenty-one billion, one hundred eleven million, thirty-two thousand, twenty-three".