111220432320 has 112 divisors (see below), whose sum is σ = 353387363328. Its totient is φ = 29636736000.

The previous prime is 111220432313. The next prime is 111220432321. The reversal of 111220432320 is 23234022111.

It is a super-3 number, since 3×111220432320³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220432321) 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, 1269945 + ... + 1354695.

Almost surely, 2^111220432320 is an apocalyptic number.

111220432320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111220432320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176693681664).

111220432320 is an abundant number, since it is smaller than the sum of its proper divisors (242166931008).

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

111220432320 is a wasteful number, since it uses less digits than its factorization.

111220432320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86138 (or 86128 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 111220432320 its reverse (23234022111), we get a palindrome (134454454431).

The spelling of 111220432320 in words is "one hundred eleven billion, two hundred twenty million, four hundred thirty-two thousand, three hundred twenty".