111121320102 has 32 divisors (see below), whose sum is σ = 240024069600. Its totient is φ = 34093198080.

The previous prime is 111121320091. The next prime is 111121320139. The reversal of 111121320102 is 201023121111.

It is a super-2 number, since 2×111121320102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2013799 + ... + 2068242.

It is an arithmetic number, because the mean of its divisors is an integer number (7500752175).

Almost surely, 2^111121320102 is an apocalyptic number.

111121320102 is an abundant number, since it is smaller than the sum of its proper divisors (128902749498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111121320102 is a wasteful number, since it uses less digits than its factorization.

111121320102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4082408.

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

Adding to 111121320102 its reverse (201023121111), we get a palindrome (312144441213).

The spelling of 111121320102 in words is "one hundred eleven billion, one hundred twenty-one million, three hundred twenty thousand, one hundred two".