1105230454561 has 4 divisors (see below), whose sum is σ = 1130933488432. Its totient is φ = 1079527420692.

The previous prime is 1105230454547. The next prime is 1105230454619. The reversal of 1105230454561 is 1654540325011.

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.

It is a cyclic number.

It is not a de Polignac number, because 1105230454561 - 2¹⁵ = 1105230421793 is a prime.

It is a super-2 number, since 2×1105230454561² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1105230454561.

It is not an unprimeable number, because it can be changed into a prime (1105230454541) 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, 12851516871 + ... + 12851516956.

It is an arithmetic number, because the mean of its divisors is an integer number (282733372108).

Almost surely, 2^{1105230454561} is an apocalyptic number.

It is an amenable number.

1105230454561 is a deficient number, since it is larger than the sum of its proper divisors (25703033871).

1105230454561 is an equidigital number, since it uses as much as digits as its factorization.

1105230454561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25703033870.

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 1105230454561 its reverse (1654540325011), we get a palindrome (2759770779572).

The spelling of 1105230454561 in words is "one trillion, one hundred five billion, two hundred thirty million, four hundred fifty-four thousand, five hundred sixty-one".