111542211040400 has 120 divisors (see below), whose sum is σ = 306326870742144. Its totient is φ = 38235073536000.

The previous prime is 111542211040387. The next prime is 111542211040453. The reversal of 111542211040400 is 4040112245111.

It is a happy number.

It is a super-2 number, since 2×111542211040400² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111542211040400.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9294029 + ... + 17591571.

Almost surely, 2^{111542211040400} is an apocalyptic number.

111542211040400 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 111542211040400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153163435371072).

111542211040400 is an abundant number, since it is smaller than the sum of its proper divisors (194784659701744).

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

111542211040400 is a wasteful number, since it uses less digits than its factorization.

111542211040400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8302369 (or 8302358 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

Adding to 111542211040400 its reverse (4040112245111), we get a palindrome (115582323285511).

The spelling of 111542211040400 in words is "one hundred eleven trillion, five hundred forty-two billion, two hundred eleven million, forty thousand, four hundred".