21313323020003 has 8 divisors (see below), whose sum is σ = 25417130558208. Its totient is φ = 17474277258504.

The previous prime is 21313323019979. The next prime is 21313323020053. The reversal of 21313323020003 is 30002032331312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21313323020003 - 2³⁴ = 21296143150819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21313323020053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66190444001 + ... + 66190444322.

It is an arithmetic number, because the mean of its divisors is an integer number (3177141319776).

Almost surely, 2^{21313323020003} is an apocalyptic number.

21313323020003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21313323020003 is a deficient number, since it is larger than the sum of its proper divisors (4103807538205).

21313323020003 is a wasteful number, since it uses less digits than its factorization.

21313323020003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132380888353.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 21313323020003 its reverse (30002032331312), we get a palindrome (51315355351315).

The spelling of 21313323020003 in words is "twenty-one trillion, three hundred thirteen billion, three hundred twenty-three million, twenty thousand, three".