213140410402 has 4 divisors (see below), whose sum is σ = 319710615606. Its totient is φ = 106570205200.

The previous prime is 213140410361. The next prime is 213140410453. The reversal of 213140410402 is 204014041312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 133576361361 + 79564049041 = 365481^2 + 282071^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53285102599 + ... + 53285102602.

Almost surely, 2^213140410402 is an apocalyptic number.

213140410402 is a deficient number, since it is larger than the sum of its proper divisors (106570205204).

213140410402 is a wasteful number, since it uses less digits than its factorization.

213140410402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106570205203.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 213140410402 its reverse (204014041312), we get a palindrome (417154451714).

The spelling of 213140410402 in words is "two hundred thirteen billion, one hundred forty million, four hundred ten thousand, four hundred two".