21430312203032 has 32 divisors (see below), whose sum is σ = 40275564891120. Its totient is φ = 10690188612480.

The previous prime is 21430312203029. The next prime is 21430312203049. The reversal of 21430312203032 is 23030221303412.

It is a happy number.

It is a super-2 number, since 2×21430312203032² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21430312202992 and 21430312203010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4652618 + ... + 8031654.

Almost surely, 2^{21430312203032} is an apocalyptic number.

It is an amenable number.

21430312203032 is a deficient number, since it is larger than the sum of its proper divisors (18845252688088).

21430312203032 is a wasteful number, since it uses less digits than its factorization.

21430312203032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3380891 (or 3380887 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 21430312203032 its reverse (23030221303412), we get a palindrome (44460533506444).

The spelling of 21430312203032 in words is "twenty-one trillion, four hundred thirty billion, three hundred twelve million, two hundred three thousand, thirty-two".