21230442033371 has 2 divisors, whose sum is σ = 21230442033372. Its totient is φ = 21230442033370.

The previous prime is 21230442033299. The next prime is 21230442033433. The reversal of 21230442033371 is 17333024403212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21230442033371 is a prime.

It is a super-2 number, since 2×21230442033371² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21230442033071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10615221016685 + 10615221016686.

It is an arithmetic number, because the mean of its divisors is an integer number (10615221016686).

Almost surely, 2^{21230442033371} is an apocalyptic number.

21230442033371 is a deficient number, since it is larger than the sum of its proper divisors (1).

21230442033371 is an equidigital number, since it uses as much as digits as its factorization.

21230442033371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 35.

Adding to 21230442033371 its reverse (17333024403212), we get a palindrome (38563466436583).

The spelling of 21230442033371 in words is "twenty-one trillion, two hundred thirty billion, four hundred forty-two million, thirty-three thousand, three hundred seventy-one".