45012254321 has 2 divisors, whose sum is σ = 45012254322. Its totient is φ = 45012254320.

The previous prime is 45012254317. The next prime is 45012254377. The reversal of 45012254321 is 12345221054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28121613025 + 16890641296 = 167695^2 + 129964^2 .

It is a cyclic number.

It is not a de Polignac number, because 45012254321 - 2² = 45012254317 is a prime.

It is a super-2 number, since 2×45012254321² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45012254381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22506127160 + 22506127161.

It is an arithmetic number, because the mean of its divisors is an integer number (22506127161).

Almost surely, 2^45012254321 is an apocalyptic number.

It is an amenable number.

45012254321 is a deficient number, since it is larger than the sum of its proper divisors (1).

45012254321 is an equidigital number, since it uses as much as digits as its factorization.

45012254321 is an odious number, because the sum of its binary digits is odd.

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

Adding to 45012254321 its reverse (12345221054), we get a palindrome (57357475375).

The spelling of 45012254321 in words is "forty-five billion, twelve million, two hundred fifty-four thousand, three hundred twenty-one".