111161304452 has 12 divisors (see below), whose sum is σ = 212217035856. Its totient is φ = 50527865640.

The previous prime is 111161304451. The next prime is 111161304479. The reversal of 111161304452 is 254403161111.

It is not an unprimeable number, because it can be changed into a prime (111161304451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1263196598 + ... + 1263196685.

It is an arithmetic number, because the mean of its divisors is an integer number (17684752988).

Almost surely, 2^111161304452 is an apocalyptic number.

It is an amenable number.

111161304452 is a deficient number, since it is larger than the sum of its proper divisors (101055731404).

111161304452 is a wasteful number, since it uses less digits than its factorization.

111161304452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526393298 (or 2526393296 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 111161304452 its reverse (254403161111), we get a palindrome (365564465563).

The spelling of 111161304452 in words is "one hundred eleven billion, one hundred sixty-one million, three hundred four thousand, four hundred fifty-two".