111302010021 has 32 divisors (see below), whose sum is σ = 159115822848. Its totient is φ = 69024130560.

The previous prime is 111302009977. The next prime is 111302010041. The reversal of 111302010021 is 120010203111.

It is not a de Polignac number, because 111302010021 - 2⁶ = 111302009957 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111302009979 and 111302010006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111302010041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6059311 + ... + 6077651.

It is an arithmetic number, because the mean of its divisors is an integer number (4972369464).

Almost surely, 2^111302010021 is an apocalyptic number.

It is an amenable number.

111302010021 is a deficient number, since it is larger than the sum of its proper divisors (47813812827).

111302010021 is a wasteful number, since it uses less digits than its factorization.

111302010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20781.

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

Adding to 111302010021 its reverse (120010203111), we get a palindrome (231312213132).

The spelling of 111302010021 in words is "one hundred eleven billion, three hundred two million, ten thousand, twenty-one".