21014041402 has 32 divisors (see below), whose sum is σ = 33599635200. Its totient is φ = 9835499520.

The previous prime is 21014041381. The next prime is 21014041429. The reversal of 21014041402 is 20414041012.

It is a self number, because there is not a number n which added to its sum of digits gives 21014041402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 539578 + ... + 577210.

It is an arithmetic number, because the mean of its divisors is an integer number (1049988600).

Almost surely, 2^21014041402 is an apocalyptic number.

21014041402 is a deficient number, since it is larger than the sum of its proper divisors (12585593798).

21014041402 is a wasteful number, since it uses less digits than its factorization.

21014041402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37918.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 21014041402 its reverse (20414041012), we get a palindrome (41428082414).

The spelling of 21014041402 in words is "twenty-one billion, fourteen million, forty-one thousand, four hundred two".