111200321020 has 12 divisors (see below), whose sum is σ = 233520674184. Its totient is φ = 44480128400.

The previous prime is 111200321009. The next prime is 111200321021. The reversal of 111200321020 is 20123002111.

It is a super-2 number, since 2×111200321020² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111200321021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2780008006 + ... + 2780008045.

It is an arithmetic number, because the mean of its divisors is an integer number (19460056182).

Almost surely, 2^111200321020 is an apocalyptic number.

111200321020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111200321020 is an abundant number, since it is smaller than the sum of its proper divisors (122320353164).

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

111200321020 is a wasteful number, since it uses less digits than its factorization.

111200321020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5560016060 (or 5560016058 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 111200321020 its reverse (20123002111), we get a palindrome (131323323131).

The spelling of 111200321020 in words is "one hundred eleven billion, two hundred million, three hundred twenty-one thousand, twenty".