21030000232 has 32 divisors (see below), whose sum is σ = 39543799680. Its totient is φ = 10485031680.

The previous prime is 21030000227. The next prime is 21030000241. The reversal of 21030000232 is 23200003012.

It is a happy 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, 5542528 + ... + 5546320.

It is an arithmetic number, because the mean of its divisors is an integer number (1235743740).

Almost surely, 2^21030000232 is an apocalyptic number.

It is an amenable number.

21030000232 is a deficient number, since it is larger than the sum of its proper divisors (18513799448).

21030000232 is a wasteful number, since it uses less digits than its factorization.

21030000232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5593 (or 5589 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 21030000232 its reverse (23200003012), we get a palindrome (44230003244).

The spelling of 21030000232 in words is "twenty-one billion, thirty million, two hundred thirty-two", and thus it is an aban number.