111220601353 has 4 divisors (see below), whose sum is σ = 112787088768. Its totient is φ = 109654113940.

The previous prime is 111220601347. The next prime is 111220601357. The reversal of 111220601353 is 353106022111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 353106022111 = 37 ⋅9543406003.

It is not a de Polignac number, because 111220601353 - 2¹⁷ = 111220470281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111220601357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 783243601 + ... + 783243742.

It is an arithmetic number, because the mean of its divisors is an integer number (28196772192).

Almost surely, 2^111220601353 is an apocalyptic number.

It is an amenable number.

111220601353 is a deficient number, since it is larger than the sum of its proper divisors (1566487415).

111220601353 is an equidigital number, since it uses as much as digits as its factorization.

111220601353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566487414.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 111220601353 its reverse (353106022111), we get a palindrome (464326623464).

The spelling of 111220601353 in words is "one hundred eleven billion, two hundred twenty million, six hundred one thousand, three hundred fifty-three".