21020143403414 has 16 divisors (see below), whose sum is σ = 31634602399008. Its totient is φ = 10475330095872.

The previous prime is 21020143403387. The next prime is 21020143403429. The reversal of 21020143403414 is 41430434102012.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 12762779 + ... + 14315334.

It is an arithmetic number, because the mean of its divisors is an integer number (1977162649938).

Almost surely, 2^{21020143403414} is an apocalyptic number.

21020143403414 is a deficient number, since it is larger than the sum of its proper divisors (10614458995594).

21020143403414 is a wasteful number, since it uses less digits than its factorization.

21020143403414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27079399.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 21020143403414 its reverse (41430434102012), we get a palindrome (62450577505426).

The spelling of 21020143403414 in words is "twenty-one trillion, twenty billion, one hundred forty-three million, four hundred three thousand, four hundred fourteen".