21230203367 has 2 divisors, whose sum is σ = 21230203368. Its totient is φ = 21230203366.

The previous prime is 21230203331. The next prime is 21230203387. The reversal of 21230203367 is 76330203212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21230203367 - 2²⁴ = 21213426151 is a prime.

It is a super-3 number, since 3×21230203367³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21230203387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10615101683 + 10615101684.

It is an arithmetic number, because the mean of its divisors is an integer number (10615101684).

Almost surely, 2^21230203367 is an apocalyptic number.

21230203367 is a deficient number, since it is larger than the sum of its proper divisors (1).

21230203367 is an equidigital number, since it uses as much as digits as its factorization.

21230203367 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 29.

Adding to 21230203367 its reverse (76330203212), we get a palindrome (97560406579).

The spelling of 21230203367 in words is "twenty-one billion, two hundred thirty million, two hundred three thousand, three hundred sixty-seven".