22047020423 has 2 divisors, whose sum is σ = 22047020424. Its totient is φ = 22047020422.

The previous prime is 22047020389. The next prime is 22047020447. The reversal of 22047020423 is 32402074022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22047020423 - 2¹⁰ = 22047019399 is a prime.

It is a super-2 number, since 2×22047020423² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22047020392 and 22047020401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22047020453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11023510211 + 11023510212.

It is an arithmetic number, because the mean of its divisors is an integer number (11023510212).

Almost surely, 2^22047020423 is an apocalyptic number.

22047020423 is a deficient number, since it is larger than the sum of its proper divisors (1).

22047020423 is an equidigital number, since it uses as much as digits as its factorization.

22047020423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 26.

Adding to 22047020423 its reverse (32402074022), we get a palindrome (54449094445).

The spelling of 22047020423 in words is "twenty-two billion, forty-seven million, twenty thousand, four hundred twenty-three".