111323320120220 has 48 divisors (see below), whose sum is σ = 251764802251200. Its totient is φ = 41103532732416.

The previous prime is 111323320120217. The next prime is 111323320120241. The reversal of 111323320120220 is 22021023323111.

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, 21192764 + ... + 25918716.

It is an arithmetic number, because the mean of its divisors is an integer number (5245100046900).

Almost surely, 2^{111323320120220} is an apocalyptic number.

111323320120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111323320120220 is an abundant number, since it is smaller than the sum of its proper divisors (140441482130980).

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

111323320120220 is a wasteful number, since it uses less digits than its factorization.

111323320120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4816574 (or 4816572 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 111323320120220 its reverse (22021023323111), we get a palindrome (133344343443331).

The spelling of 111323320120220 in words is "one hundred eleven trillion, three hundred twenty-three billion, three hundred twenty million, one hundred twenty thousand, two hundred twenty".