21020313223003 has 8 divisors (see below), whose sum is σ = 21142647173088. Its totient is φ = 20897988804864.

The previous prime is 21020313222983. The next prime is 21020313223099. The reversal of 21020313223003 is 30032231302012.

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 21020313223003 - 2¹⁷ = 21020313091931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21020311223003) 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, 2064426 + ... + 6804592.

It is an arithmetic number, because the mean of its divisors is an integer number (2642830896636).

Almost surely, 2^{21020313223003} is an apocalyptic number.

21020313223003 is a deficient number, since it is larger than the sum of its proper divisors (122333950085).

21020313223003 is a wasteful number, since it uses less digits than its factorization.

21020313223003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4765973.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21020313223003 its reverse (30032231302012), we get a palindrome (51052544525015).

The spelling of 21020313223003 in words is "twenty-one trillion, twenty billion, three hundred thirteen million, two hundred twenty-three thousand, three".