12044345105 has 32 divisors (see below), whose sum is σ = 16117466400. Its totient is φ = 8579192832.

The previous prime is 12044345087. The next prime is 12044345123. The reversal of 12044345105 is 50154344021.

It is an interprime number because it is at equal distance from previous prime (12044345087) and next prime (12044345123).

It can be written as a sum of positive squares in 16 ways, for example, as 960256144 + 11084088961 = 30988^2 + 105281^2 .

It is a cyclic number.

It is not a de Polignac number, because 12044345105 - 2¹² = 12044341009 is a prime.

It is a super-2 number, since 2×12044345105² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

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, 2427287 + ... + 2432243.

It is an arithmetic number, because the mean of its divisors is an integer number (503670825).

Almost surely, 2^12044345105 is an apocalyptic number.

It is an amenable number.

12044345105 is a deficient number, since it is larger than the sum of its proper divisors (4073121295).

12044345105 is a wasteful number, since it uses less digits than its factorization.

12044345105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6293.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 12044345105 its reverse (50154344021), we get a palindrome (62198689126).

The spelling of 12044345105 in words is "twelve billion, forty-four million, three hundred forty-five thousand, one hundred five".