22021313323 has 4 divisors (see below), whose sum is σ = 22558418568. Its totient is φ = 21484208080.

The previous prime is 22021313297. The next prime is 22021313383. The reversal of 22021313323 is 32331312022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32331312022 = 2 ⋅16165656011.

It is a cyclic number.

It is not a de Polignac number, because 22021313323 - 2⁹ = 22021312811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22021313294 and 22021313303.

It is not an unprimeable number, because it can be changed into a prime (22021313383) 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, 268552561 + ... + 268552642.

It is an arithmetic number, because the mean of its divisors is an integer number (5639604642).

Almost surely, 2^22021313323 is an apocalyptic number.

22021313323 is a deficient number, since it is larger than the sum of its proper divisors (537105245).

22021313323 is an equidigital number, since it uses as much as digits as its factorization.

22021313323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537105244.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 22021313323 its reverse (32331312022), we get a palindrome (54352625345).

The spelling of 22021313323 in words is "twenty-two billion, twenty-one million, three hundred thirteen thousand, three hundred twenty-three".