111012231001123 has 4 divisors (see below), whose sum is σ = 111054169889680. Its totient is φ = 110970292112568.

The previous prime is 111012231001079. The next prime is 111012231001183. The reversal of 111012231001123 is 321100132210111.

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 111012231001123 - 2²¹ = 111012228903971 is a prime.

It is a super-2 number, since 2×111012231001123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111012231001123.

It is not an unprimeable number, because it can be changed into a prime (111012231001183) 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, 20969440308 + ... + 20969445601.

It is an arithmetic number, because the mean of its divisors is an integer number (27763542472420).

Almost surely, 2^{111012231001123} is an apocalyptic number.

111012231001123 is a deficient number, since it is larger than the sum of its proper divisors (41938888557).

111012231001123 is an equidigital number, since it uses as much as digits as its factorization.

111012231001123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41938888556.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 111012231001123 its reverse (321100132210111), we get a palindrome (432112363211234).

The spelling of 111012231001123 in words is "one hundred eleven trillion, twelve billion, two hundred thirty-one million, one thousand, one hundred twenty-three".