11101123045 has 4 divisors (see below), whose sum is σ = 13321347660. Its totient is φ = 8880898432.

The previous prime is 11101123043. The next prime is 11101123049. The reversal of 11101123045 is 54032110111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5817723076 + 5283399969 = 76274^2 + 72687^2 .

It is a cyclic number.

It is not a de Polignac number, because 11101123045 - 2¹ = 11101123043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101123043) 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, 1110112300 + ... + 1110112309.

It is an arithmetic number, because the mean of its divisors is an integer number (3330336915).

Almost surely, 2^11101123045 is an apocalyptic number.

It is an amenable number.

11101123045 is a deficient number, since it is larger than the sum of its proper divisors (2220224615).

11101123045 is an equidigital number, since it uses as much as digits as its factorization.

11101123045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220224614.

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 11101123045 its reverse (54032110111), we get a palindrome (65133233156).

The spelling of 11101123045 in words is "eleven billion, one hundred one million, one hundred twenty-three thousand, forty-five".