22123023230321 has 4 divisors (see below), whose sum is σ = 23824794248052. Its totient is φ = 20421252212592.

The previous prime is 22123023230317. The next prime is 22123023230323. The reversal of 22123023230321 is 12303232032122.

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 2523268710400 + 19599754519921 = 1588480^2 + 4427161^2 .

It is a cyclic number.

It is not a de Polignac number, because 22123023230321 - 2² = 22123023230317 is a prime.

It is a super-2 number, since 2×22123023230321² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22123023230323) 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, 850885508846 + ... + 850885508871.

It is an arithmetic number, because the mean of its divisors is an integer number (5956198562013).

Almost surely, 2^{22123023230321} is an apocalyptic number.

It is an amenable number.

22123023230321 is a deficient number, since it is larger than the sum of its proper divisors (1701771017731).

22123023230321 is a wasteful number, since it uses less digits than its factorization.

22123023230321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701771017730.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 22123023230321 its reverse (12303232032122), we get a palindrome (34426255262443).

The spelling of 22123023230321 in words is "twenty-two trillion, one hundred twenty-three billion, twenty-three million, two hundred thirty thousand, three hundred twenty-one".