213421423214402 has 8 divisors (see below), whose sum is σ = 344757683654076. Its totient is φ = 98502195329712.

The previous prime is 213421423214399. The next prime is 213421423214443. The reversal of 213421423214402 is 204412324124312.

It can be written as a sum of positive squares in 2 ways, for example, as 213041201756761 + 380221457641 = 14595931^2 + 616621^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4104258138713 + ... + 4104258138764.

Almost surely, 2^{213421423214402} is an apocalyptic number.

213421423214402 is a deficient number, since it is larger than the sum of its proper divisors (131336260439674).

213421423214402 is a wasteful number, since it uses less digits than its factorization.

213421423214402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8208516277492.

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 213421423214402 its reverse (204412324124312), we get a palindrome (417833747338714).

The spelling of 213421423214402 in words is "two hundred thirteen trillion, four hundred twenty-one billion, four hundred twenty-three million, two hundred fourteen thousand, four hundred two".