23453314211545 has 32 divisors (see below), whose sum is σ = 28628475472800. Its totient is φ = 18440156528640.

The previous prime is 23453314211521. The next prime is 23453314211549. The reversal of 23453314211545 is 54511241335432.

It can be written as a sum of positive squares in 16 ways, for example, as 10505040357904 + 12948273853641 = 3241148^2 + 3598371^2 .

It is not a de Polignac number, because 23453314211545 - 2¹⁷ = 23453314080473 is a prime.

It is a super-2 number, since 2×23453314211545² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23453314211549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3375059731 + ... + 3375066679.

It is an arithmetic number, because the mean of its divisors is an integer number (894639858525).

Almost surely, 2^{23453314211545} is an apocalyptic number.

It is an amenable number.

23453314211545 is a deficient number, since it is larger than the sum of its proper divisors (5175161261255).

23453314211545 is a wasteful number, since it uses less digits than its factorization.

23453314211545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14365.

The product of its digits is 864000, while the sum is 43.

Adding to 23453314211545 its reverse (54511241335432), we get a palindrome (77964555546977).

The spelling of 23453314211545 in words is "twenty-three trillion, four hundred fifty-three billion, three hundred fourteen million, two hundred eleven thousand, five hundred forty-five".