21230334141 has 4 divisors (see below), whose sum is σ = 28307112192. Its totient is φ = 14153556092.

The previous prime is 21230334137. The next prime is 21230334149. The reversal of 21230334141 is 14143303212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21230334141 - 2² = 21230334137 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230334149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3538389021 + ... + 3538389026.

It is an arithmetic number, because the mean of its divisors is an integer number (7076778048).

Almost surely, 2^21230334141 is an apocalyptic number.

It is an amenable number.

21230334141 is a deficient number, since it is larger than the sum of its proper divisors (7076778051).

21230334141 is an equidigital number, since it uses as much as digits as its factorization.

21230334141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7076778050.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 21230334141 its reverse (14143303212), we get a palindrome (35373637353).

The spelling of 21230334141 in words is "twenty-one billion, two hundred thirty million, three hundred thirty-four thousand, one hundred forty-one".