214210213231397 has 2 divisors, whose sum is σ = 214210213231398. Its totient is φ = 214210213231396.

The previous prime is 214210213231393. The next prime is 214210213231409. The reversal of 214210213231397 is 793132312012412.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139725615072481 + 74484598158916 = 11820559^2 + 8630446^2 .

It is a cyclic number.

It is not a de Polignac number, because 214210213231397 - 2² = 214210213231393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214210213231393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107105106615698 + 107105106615699.

It is an arithmetic number, because the mean of its divisors is an integer number (107105106615699).

Almost surely, 2^{214210213231397} is an apocalyptic number.

It is an amenable number.

214210213231397 is a deficient number, since it is larger than the sum of its proper divisors (1).

214210213231397 is an equidigital number, since it uses as much as digits as its factorization.

214210213231397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 214210213231397 in words is "two hundred fourteen trillion, two hundred ten billion, two hundred thirteen million, two hundred thirty-one thousand, three hundred ninety-seven".