1105520423 has 4 divisors (see below), whose sum is σ = 1263451920. Its totient is φ = 947588928.

The previous prime is 1105520413. The next prime is 1105520441. The reversal of 1105520423 is 3240255011.

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

It is a cyclic number.

It is not a de Polignac number, because 1105520423 - 2⁶ = 1105520359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105520413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78965738 + ... + 78965751.

It is an arithmetic number, because the mean of its divisors is an integer number (315862980).

Almost surely, 2^1105520423 is an apocalyptic number.

1105520423 is a deficient number, since it is larger than the sum of its proper divisors (157931497).

1105520423 is an equidigital number, since it uses as much as digits as its factorization.

1105520423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157931496.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1105520423 is about 33249.3672571374. The cubic root of 1105520423 is about 1034.0040901260.

Adding to 1105520423 its reverse (3240255011), we get a palindrome (4345775434).

The spelling of 1105520423 in words is "one billion, one hundred five million, five hundred twenty thousand, four hundred twenty-three".