111002311021 has 8 divisors (see below), whose sum is σ = 127413758720. Its totient is φ = 94729357008.

The previous prime is 111002310989. The next prime is 111002311027. The reversal of 111002311021 is 120113200111.

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 111002311021 - 2⁵ = 111002310989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111002310992 and 111002311010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111002311027) 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, 34621701 + ... + 34624906.

It is an arithmetic number, because the mean of its divisors is an integer number (15926719840).

Almost surely, 2^111002311021 is an apocalyptic number.

It is an amenable number.

111002311021 is a deficient number, since it is larger than the sum of its proper divisors (16411447699).

111002311021 is an equidigital number, since it uses as much as digits as its factorization.

111002311021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69246843.

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

Adding to 111002311021 its reverse (120113200111), we get a palindrome (231115511132).

The spelling of 111002311021 in words is "one hundred eleven billion, two million, three hundred eleven thousand, twenty-one".