21334311203402 has 32 divisors (see below), whose sum is σ = 34139720305152. Its totient is φ = 9975614673024.

The previous prime is 21334311203347. The next prime is 21334311203423. The reversal of 21334311203402 is 20430211343312.

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 15 ways as a sum of consecutive naturals, for example, 3239873 + ... + 7291460.

It is an arithmetic number, because the mean of its divisors is an integer number (1066866259536).

Almost surely, 2^{21334311203402} is an apocalyptic number.

21334311203402 is a deficient number, since it is larger than the sum of its proper divisors (12805409101750).

21334311203402 is a wasteful number, since it uses less digits than its factorization.

21334311203402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10532342.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 21334311203402 its reverse (20430211343312), we get a palindrome (41764522546714).

The spelling of 21334311203402 in words is "twenty-one trillion, three hundred thirty-four billion, three hundred eleven million, two hundred three thousand, four hundred two".