21303143430004 has 12 divisors (see below), whose sum is σ = 37282851860800. Its totient is φ = 10650900041208.

The previous prime is 21303143429987. The next prime is 21303143430013. The reversal of 21303143430004 is 40003434130312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167847084 + ... + 167973955.

Almost surely, 2^{21303143430004} is an apocalyptic number.

It is an amenable number.

21303143430004 is a deficient number, since it is larger than the sum of its proper divisors (15979708430796).

21303143430004 is a wasteful number, since it uses less digits than its factorization.

21303143430004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335836902 (or 335836900 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 21303143430004 its reverse (40003434130312), we get a palindrome (61306577560316).

The spelling of 21303143430004 in words is "twenty-one trillion, three hundred three billion, one hundred forty-three million, four hundred thirty thousand, four".