23205521425433 has 4 divisors (see below), whose sum is σ = 23333728726308. Its totient is φ = 23077314124560.

The previous prime is 23205521425369. The next prime is 23205521425441. The reversal of 23205521425433 is 33452412550232.

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 4932521181184 + 18273000244249 = 2220928^2 + 4274693^2 .

It is a cyclic number.

It is not a de Polignac number, because 23205521425433 - 2⁶ = 23205521425369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23205521425033) 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, 64103650166 + ... + 64103650527.

It is an arithmetic number, because the mean of its divisors is an integer number (5833432181577).

Almost surely, 2^{23205521425433} is an apocalyptic number.

It is an amenable number.

23205521425433 is a deficient number, since it is larger than the sum of its proper divisors (128207300875).

23205521425433 is a wasteful number, since it uses less digits than its factorization.

23205521425433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128207300874.

The product of its (nonzero) digits is 864000, while the sum is 41.

Adding to 23205521425433 its reverse (33452412550232), we get a palindrome (56657933975665).

The spelling of 23205521425433 in words is "twenty-three trillion, two hundred five billion, five hundred twenty-one million, four hundred twenty-five thousand, four hundred thirty-three".