21003100232 has 16 divisors (see below), whose sum is σ = 41453487600. Its totient is φ = 9948836880.

The previous prime is 21003100219. The next prime is 21003100241. The reversal of 21003100232 is 23200130012.

It is a happy number.

It is a super-2 number, since 2×21003100232² (a number of 21 digits) contains 22 as substring.

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, 69088994 + ... + 69089297.

It is an arithmetic number, because the mean of its divisors is an integer number (2590842975).

Almost surely, 2^21003100232 is an apocalyptic number.

It is an amenable number.

21003100232 is a deficient number, since it is larger than the sum of its proper divisors (20450387368).

21003100232 is a wasteful number, since it uses less digits than its factorization.

21003100232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138178316 (or 138178312 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 21003100232 its reverse (23200130012), we get a palindrome (44203230244).

The spelling of 21003100232 in words is "twenty-one billion, three million, one hundred thousand, two hundred thirty-two".