341213921 has 2 divisors, whose sum is σ = 341213922. Its totient is φ = 341213920.

The previous prime is 341213911. The next prime is 341213923. The reversal of 341213921 is 129312143.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 315559696 + 25654225 = 17764^2 + 5065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-341213921 is a prime.

Together with 341213923, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (341213923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170606960 + 170606961.

It is an arithmetic number, because the mean of its divisors is an integer number (170606961).

Almost surely, 2^341213921 is an apocalyptic number.

It is an amenable number.

341213921 is a deficient number, since it is larger than the sum of its proper divisors (1).

341213921 is an equidigital number, since it uses as much as digits as its factorization.

341213921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 26.

The square root of 341213921 is about 18471.9766403057. The cubic root of 341213921 is about 698.7828651885.

The spelling of 341213921 in words is "three hundred forty-one million, two hundred thirteen thousand, nine hundred twenty-one".