21232000010 has 16 divisors (see below), whose sum is σ = 41157415656. Its totient is φ = 7839507648.

The previous prime is 21231999973. The next prime is 21232000061. The reversal of 21232000010 is 1000023212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9910401601 + 11321598409 = 99551^2 + 106403^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21231999955 and 21232000000.

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, 81661409 + ... + 81661668.

Almost surely, 2^21232000010 is an apocalyptic number.

21232000010 is a deficient number, since it is larger than the sum of its proper divisors (19925415646).

21232000010 is a wasteful number, since it uses less digits than its factorization.

21232000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163323097.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 21232000010 its reverse (1000023212), we get a palindrome (22232023222).

The spelling of 21232000010 in words is "twenty-one billion, two hundred thirty-two million, ten", and thus it is an aban number.