11101420555 has 32 divisors (see below), whose sum is σ = 13911004800. Its totient is φ = 8498304000.

The previous prime is 11101420549. The next prime is 11101420601. The reversal of 11101420555 is 55502410111.

It is not a de Polignac number, because 11101420555 - 2⁵ = 11101420523 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2254386 + ... + 2259304.

It is an arithmetic number, because the mean of its divisors is an integer number (434718900).

Almost surely, 2^11101420555 is an apocalyptic number.

11101420555 is a deficient number, since it is larger than the sum of its proper divisors (2809584245).

11101420555 is a wasteful number, since it uses less digits than its factorization.

11101420555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5175.

The product of its (nonzero) digits is 1000, while the sum is 25.

Adding to 11101420555 its reverse (55502410111), we get a palindrome (66603830666).

The spelling of 11101420555 in words is "eleven billion, one hundred one million, four hundred twenty thousand, five hundred fifty-five".