11111000120023 has 4 divisors (see below), whose sum is σ = 11111020150960. Its totient is φ = 11110980089088.

The previous prime is 11111000119987. The next prime is 11111000120071. The reversal of 11111000120023 is 32002100011111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11111000120023 - 2¹³ = 11111000111831 is a prime.

It is a super-2 number, since 2×11111000120023² (a number of 27 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 = 11111000119985 and 11111000120012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111000120093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9159018 + ... + 10300951.

It is an arithmetic number, because the mean of its divisors is an integer number (2777755037740).

Almost surely, 2^{11111000120023} is an apocalyptic number.

11111000120023 is a deficient number, since it is larger than the sum of its proper divisors (20030937).

11111000120023 is an equidigital number, since it uses as much as digits as its factorization.

11111000120023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20030936.

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

Adding to 11111000120023 its reverse (32002100011111), we get a palindrome (43113100131134).

The spelling of 11111000120023 in words is "eleven trillion, one hundred eleven billion, one hundred twenty thousand, twenty-three".