111120210321 has 16 divisors (see below), whose sum is σ = 149840311680. Its totient is φ = 73240295040.

The previous prime is 111120210283. The next prime is 111120210329. The reversal of 111120210321 is 123012021111.

It is not a de Polignac number, because 111120210321 - 2¹⁰ = 111120209297 is a prime.

It is a super-2 number, since 2×111120210321² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111120210321.

It is not an unprimeable number, because it can be changed into a prime (111120210329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4063731 + ... + 4090983.

It is an arithmetic number, because the mean of its divisors is an integer number (9365019480).

Almost surely, 2^111120210321 is an apocalyptic number.

It is an amenable number.

111120210321 is a deficient number, since it is larger than the sum of its proper divisors (38720101359).

111120210321 is a wasteful number, since it uses less digits than its factorization.

111120210321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42616.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 111120210321 its reverse (123012021111), we get a palindrome (234132231432).

The spelling of 111120210321 in words is "one hundred eleven billion, one hundred twenty million, two hundred ten thousand, three hundred twenty-one".