21032310003 has 16 divisors (see below), whose sum is σ = 30206294016. Its totient is φ = 12979264320.

The previous prime is 21032309959. The next prime is 21032310031. The reversal of 21032310003 is 30001323012.

It is not a de Polignac number, because 21032310003 - 2²⁶ = 20965201139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21032310043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4914250 + ... + 4918527.

It is an arithmetic number, because the mean of its divisors is an integer number (1887893376).

Almost surely, 2^21032310003 is an apocalyptic number.

21032310003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21032310003 is a deficient number, since it is larger than the sum of its proper divisors (9173984013).

21032310003 is a wasteful number, since it uses less digits than its factorization.

21032310003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9832834.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 21032310003 its reverse (30001323012), we get a palindrome (51033633015).

The spelling of 21032310003 in words is "twenty-one billion, thirty-two million, three hundred ten thousand, three".