111020021011123 has 8 divisors (see below), whose sum is σ = 128136261875040. Its totient is φ = 94217839612800.

The previous prime is 111020021011099. The next prime is 111020021011127. The reversal of 111020021011123 is 321110120020111.

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 111020021011123 - 2⁵ = 111020021011091 is a prime.

It is a super-2 number, since 2×111020021011123² (a number of 29 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 = 111020021011097 and 111020021011106.

It is not an unprimeable number, because it can be changed into a prime (111020021011127) 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, 78514865638 + ... + 78514867051.

It is an arithmetic number, because the mean of its divisors is an integer number (16017032734380).

Almost surely, 2^{111020021011123} is an apocalyptic number.

111020021011123 is a deficient number, since it is larger than the sum of its proper divisors (17116240863917).

111020021011123 is a wasteful number, since it uses less digits than its factorization.

111020021011123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157029732797.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 111020021011123 its reverse (321110120020111), we get a palindrome (432130141031234).

The spelling of 111020021011123 in words is "one hundred eleven trillion, twenty billion, twenty-one million, eleven thousand, one hundred twenty-three".