111545402241 has 16 divisors (see below), whose sum is σ = 183048865664. Its totient is φ = 58837135104.

The previous prime is 111545402239. The next prime is 111545402261. The reversal of 111545402241 is 142204545111.

It is not a de Polignac number, because 111545402241 - 2¹ = 111545402239 is a prime.

It is a super-2 number, since 2×111545402241² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111545402199 and 111545402208.

It is not an unprimeable number, because it can be changed into a prime (111545402261) 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, 204295336 + ... + 204295881.

It is an arithmetic number, because the mean of its divisors is an integer number (11440554104).

Almost surely, 2^111545402241 is an apocalyptic number.

It is an amenable number.

111545402241 is a deficient number, since it is larger than the sum of its proper divisors (71503463423).

111545402241 is a wasteful number, since it uses less digits than its factorization.

111545402241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408591240.

The product of its (nonzero) digits is 6400, while the sum is 30.

Adding to 111545402241 its reverse (142204545111), we get a palindrome (253749947352).

The spelling of 111545402241 in words is "one hundred eleven billion, five hundred forty-five million, four hundred two thousand, two hundred forty-one".