22343234321 has 2 divisors, whose sum is σ = 22343234322. Its totient is φ = 22343234320.

The previous prime is 22343234297. The next prime is 22343234341. The reversal of 22343234321 is 12343234322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22296462400 + 46771921 = 149320^2 + 6839^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22343234321 is a prime.

It is a super-2 number, since 2×22343234321² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22343234341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11171617160 + 11171617161.

It is an arithmetic number, because the mean of its divisors is an integer number (11171617161).

Almost surely, 2^22343234321 is an apocalyptic number.

It is an amenable number.

22343234321 is a deficient number, since it is larger than the sum of its proper divisors (1).

22343234321 is an equidigital number, since it uses as much as digits as its factorization.

22343234321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 29.

Adding to 22343234321 its reverse (12343234322), we get a palindrome (34686468643).

Subtracting from 22343234321 its reverse (12343234322), we obtain a palindrome (9999999999).

The spelling of 22343234321 in words is "twenty-two billion, three hundred forty-three million, two hundred thirty-four thousand, three hundred twenty-one".