21034201402 has 8 divisors (see below), whose sum is σ = 31626604800. Its totient is φ = 10491999804.

The previous prime is 21034201399. The next prime is 21034201417. The reversal of 21034201402 is 20410243012.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21034201402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12549402 + ... + 12551077.

It is an arithmetic number, because the mean of its divisors is an integer number (3953325600).

Almost surely, 2^21034201402 is an apocalyptic number.

21034201402 is a deficient number, since it is larger than the sum of its proper divisors (10592403398).

21034201402 is a wasteful number, since it uses less digits than its factorization.

21034201402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25100900.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 21034201402 its reverse (20410243012), we get a palindrome (41444444414).

The spelling of 21034201402 in words is "twenty-one billion, thirty-four million, two hundred one thousand, four hundred two".