11005545423 has 8 divisors (see below), whose sum is σ = 14674867200. Its totient is φ = 7336626968.

The previous prime is 11005545409. The next prime is 11005545451. The reversal of 11005545423 is 32454550011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11005545423 - 2⁸ = 11005545167 is a prime.

It is a super-2 number, since 2×11005545423² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11005545823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30063 + ... + 151376.

It is an arithmetic number, because the mean of its divisors is an integer number (1834358400).

Almost surely, 2^11005545423 is an apocalyptic number.

11005545423 is a deficient number, since it is larger than the sum of its proper divisors (3669321777).

11005545423 is a wasteful number, since it uses less digits than its factorization.

11005545423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201661.

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 11005545423 in words is "eleven billion, five million, five hundred forty-five thousand, four hundred twenty-three".