45040345321 has 4 divisors (see below), whose sum is σ = 45053011332. Its totient is φ = 45027679312.

The previous prime is 45040345307. The next prime is 45040345373. The reversal of 45040345321 is 12354304054.

45040345321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7536149721 + 37504195600 = 86811^2 + 193660^2 .

It is a cyclic number.

It is not a de Polignac number, because 45040345321 - 2¹³ = 45040337129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45040375321) 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, 6327670 + ... + 6334783.

It is an arithmetic number, because the mean of its divisors is an integer number (11263252833).

Almost surely, 2^45040345321 is an apocalyptic number.

It is an amenable number.

45040345321 is a deficient number, since it is larger than the sum of its proper divisors (12666011).

45040345321 is a wasteful number, since it uses less digits than its factorization.

45040345321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12666010.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 45040345321 its reverse (12354304054), we get a palindrome (57394649375).

The spelling of 45040345321 in words is "forty-five billion, forty million, three hundred forty-five thousand, three hundred twenty-one".