21412114147 has 2 divisors, whose sum is σ = 21412114148. Its totient is φ = 21412114146.

The previous prime is 21412114133. The next prime is 21412114169. The reversal of 21412114147 is 74141121412.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21412114147 is a prime.

It is not a weakly prime, because it can be changed into another prime (21412114117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10706057073 + 10706057074.

It is an arithmetic number, because the mean of its divisors is an integer number (10706057074).

Almost surely, 2^21412114147 is an apocalyptic number.

21412114147 is a deficient number, since it is larger than the sum of its proper divisors (1).

21412114147 is an equidigital number, since it uses as much as digits as its factorization.

21412114147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1792, while the sum is 28.

Adding to 21412114147 its reverse (74141121412), we get a palindrome (95553235559).

The spelling of 21412114147 in words is "twenty-one billion, four hundred twelve million, one hundred fourteen thousand, one hundred forty-seven".