214020401291 has 2 divisors, whose sum is σ = 214020401292. Its totient is φ = 214020401290.

The previous prime is 214020401183. The next prime is 214020401317. The reversal of 214020401291 is 192104020412.

It is an a-pointer prime, because the next prime (214020401317) can be obtained adding 214020401291 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214020401291 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 214020401291.

It is not a weakly prime, because it can be changed into another prime (214020404291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107010200645 + 107010200646.

It is an arithmetic number, because the mean of its divisors is an integer number (107010200646).

Almost surely, 2^214020401291 is an apocalyptic number.

214020401291 is a deficient number, since it is larger than the sum of its proper divisors (1).

214020401291 is an equidigital number, since it uses as much as digits as its factorization.

214020401291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 214020401291 in words is "two hundred fourteen billion, twenty million, four hundred one thousand, two hundred ninety-one".