111203121320 has 32 divisors (see below), whose sum is σ = 250327329120. Its totient is φ = 44459860800.

The previous prime is 111203121299. The next prime is 111203121331. The reversal of 111203121320 is 23121302111.

It is a super-2 number, since 2×111203121320² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584006 + ... + 750645.

It is an arithmetic number, because the mean of its divisors is an integer number (7822729035).

Almost surely, 2^111203121320 is an apocalyptic number.

111203121320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111203121320 is an abundant number, since it is smaller than the sum of its proper divisors (139124207800).

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

111203121320 is a wasteful number, since it uses less digits than its factorization.

111203121320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336745 (or 1336741 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 111203121320 its reverse (23121302111), we get a palindrome (134324423431).

The spelling of 111203121320 in words is "one hundred eleven billion, two hundred three million, one hundred twenty-one thousand, three hundred twenty".