111442344100 has 18 divisors (see below), whose sum is σ = 241829886914. Its totient is φ = 44576937600.

The previous prime is 111442344077. The next prime is 111442344109. The reversal of 111442344100 is 1443244111.

It can be written as a sum of positive squares in 3 ways, for example, as 32929183296 + 78513160804 = 181464^2 + 280202^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (111442344109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 557211621 + ... + 557211820.

Almost surely, 2^111442344100 is an apocalyptic number.

111442344100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111442344100 is an abundant number, since it is smaller than the sum of its proper divisors (130387542814).

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

111442344100 is a wasteful number, since it uses less digits than its factorization.

111442344100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114423455 (or 1114423448 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 111442344100 its reverse (1443244111), we get a palindrome (112885588211).

The spelling of 111442344100 in words is "one hundred eleven billion, four hundred forty-two million, three hundred forty-four thousand, one hundred".