111551201300 has 144 divisors (see below), whose sum is σ = 301957673472. Its totient is φ = 34750665600.

The previous prime is 111551201297. The next prime is 111551201371. The reversal of 111551201300 is 3102155111.

It is a happy number.

It is a super-2 number, since 2×111551201300² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24660839 + ... + 24665361.

It is an arithmetic number, because the mean of its divisors is an integer number (2096928288).

Almost surely, 2^111551201300 is an apocalyptic number.

111551201300 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 111551201300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150978836736).

111551201300 is an abundant number, since it is smaller than the sum of its proper divisors (190406472172).

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

111551201300 is a wasteful number, since it uses less digits than its factorization.

111551201300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7758 (or 7751 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 20.

Adding to 111551201300 its reverse (3102155111), we get a palindrome (114653356411).

The spelling of 111551201300 in words is "one hundred eleven billion, five hundred fifty-one million, two hundred one thousand, three hundred".