23223323351545 has 4 divisors (see below), whose sum is σ = 27867988021860. Its totient is φ = 18578658681232.

The previous prime is 23223323351539. The next prime is 23223323351567. The reversal of 23223323351545 is 54515332332232.

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 16874193368041 + 6349129983504 = 4107821^2 + 2519748^2 .

It is a cyclic number.

It is not a de Polignac number, because 23223323351545 - 2⁵ = 23223323351513 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2322332335150 + ... + 2322332335159.

It is an arithmetic number, because the mean of its divisors is an integer number (6966997005465).

Almost surely, 2^{23223323351545} is an apocalyptic number.

It is an amenable number.

23223323351545 is a deficient number, since it is larger than the sum of its proper divisors (4644664670315).

23223323351545 is an equidigital number, since it uses as much as digits as its factorization.

23223323351545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4644664670314.

The product of its digits is 1944000, while the sum is 43.

Adding to 23223323351545 its reverse (54515332332232), we get a palindrome (77738655683777).

The spelling of 23223323351545 in words is "twenty-three trillion, two hundred twenty-three billion, three hundred twenty-three million, three hundred fifty-one thousand, five hundred forty-five".