21143211304330 has 16 divisors (see below), whose sum is σ = 39712466450304. Its totient is φ = 8089576498960.

The previous prime is 21143211304291. The next prime is 21143211304333. The reversal of 21143211304330 is 3340311234112.

It is not an unprimeable number, because it can be changed into a prime (21143211304333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45963502606 + ... + 45963503065.

It is an arithmetic number, because the mean of its divisors is an integer number (2482029153144).

Almost surely, 2^{21143211304330} is an apocalyptic number.

21143211304330 is a deficient number, since it is larger than the sum of its proper divisors (18569255145974).

21143211304330 is a wasteful number, since it uses less digits than its factorization.

21143211304330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91927005701.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 21143211304330 its reverse (3340311234112), we get a palindrome (24483522538442).

The spelling of 21143211304330 in words is "twenty-one trillion, one hundred forty-three billion, two hundred eleven million, three hundred four thousand, three hundred thirty".