111202144545 has 16 divisors (see below), whose sum is σ = 177958123200. Its totient is φ = 59296246464.

The previous prime is 111202144541. The next prime is 111202144583. The reversal of 111202144545 is 545441202111.

It is not a de Polignac number, because 111202144545 - 2² = 111202144541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111202144541) 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, 642970 + ... + 797379.

It is an arithmetic number, because the mean of its divisors is an integer number (11122382700).

Almost surely, 2^111202144545 is an apocalyptic number.

111202144545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111202144545 is a deficient number, since it is larger than the sum of its proper divisors (66755978655).

111202144545 is a wasteful number, since it uses less digits than its factorization.

111202144545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445504.

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

Adding to 111202144545 its reverse (545441202111), we get a palindrome (656643346656).

The spelling of 111202144545 in words is "one hundred eleven billion, two hundred two million, one hundred forty-four thousand, five hundred forty-five".