111544213101 has 16 divisors (see below), whose sum is σ = 149104247040. Its totient is φ = 74173619520.

The previous prime is 111544213091. The next prime is 111544213147. The reversal of 111544213101 is 101312445111.

It is not a de Polignac number, because 111544213101 - 2⁶ = 111544213037 is a prime.

It is a super-2 number, since 2×111544213101² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111544213601) 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, 3959895 + ... + 3987963.

It is an arithmetic number, because the mean of its divisors is an integer number (9319015440).

Almost surely, 2^111544213101 is an apocalyptic number.

It is an amenable number.

111544213101 is a deficient number, since it is larger than the sum of its proper divisors (37560033939).

111544213101 is a wasteful number, since it uses less digits than its factorization.

111544213101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31396.

The product of its (nonzero) digits is 480, while the sum is 24.

Adding to 111544213101 its reverse (101312445111), we get a palindrome (212856658212).

The spelling of 111544213101 in words is "one hundred eleven billion, five hundred forty-four million, two hundred thirteen thousand, one hundred one".