111001120123 has 8 divisors (see below), whose sum is σ = 116876464400. Its totient is φ = 105129093888.

The previous prime is 111001120063. The next prime is 111001120147. The reversal of 111001120123 is 321021100111.

It is a happy number.

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 111001120123 - 2¹³ = 111001111931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111001120183) 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, 760686 + ... + 894787.

It is an arithmetic number, because the mean of its divisors is an integer number (14609558050).

Almost surely, 2^111001120123 is an apocalyptic number.

111001120123 is a deficient number, since it is larger than the sum of its proper divisors (5875344277).

111001120123 is a wasteful number, since it uses less digits than its factorization.

111001120123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659021.

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

Adding to 111001120123 its reverse (321021100111), we get a palindrome (432022220234).

The spelling of 111001120123 in words is "one hundred eleven billion, one million, one hundred twenty thousand, one hundred twenty-three".