21301003203320 has 16 divisors (see below), whose sum is σ = 47927257207560. Its totient is φ = 8520401281312.

The previous prime is 21301003203289. The next prime is 21301003203409. The reversal of 21301003203320 is 2330230010312.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 21301003203292 and 21301003203301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266262540002 + ... + 266262540081.

Almost surely, 2^{21301003203320} is an apocalyptic number.

21301003203320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21301003203320 is an abundant number, since it is smaller than the sum of its proper divisors (26626254004240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21301003203320 is a wasteful number, since it uses less digits than its factorization.

21301003203320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532525080094 (or 532525080090 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21301003203320 its reverse (2330230010312), we get a palindrome (23631233213632).

The spelling of 21301003203320 in words is "twenty-one trillion, three hundred one billion, three million, two hundred three thousand, three hundred twenty".