21232003010 has 16 divisors (see below), whose sum is σ = 38219326200. Its totient is φ = 8492418816.

The previous prime is 21232002983. The next prime is 21232003027. The reversal of 21232003010 is 1030023212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21225867481 + 6135529 = 145691^2 + 2477^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320636 + ... + 381144.

Almost surely, 2^21232003010 is an apocalyptic number.

21232003010 is a deficient number, since it is larger than the sum of its proper divisors (16987323190).

21232003010 is a wasteful number, since it uses less digits than its factorization.

21232003010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95605.

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

Adding to 21232003010 its reverse (1030023212), we get a palindrome (22262026222).

The spelling of 21232003010 in words is "twenty-one billion, two hundred thirty-two million, three thousand, ten".