20011003023320 has 64 divisors (see below), whose sum is σ = 45101264404320. Its totient is φ = 7990801910784.

The previous prime is 20011003023301. The next prime is 20011003023337. The reversal of 20011003023320 is 2332030011002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436393514 + ... + 436439366.

Almost surely, 2^{20011003023320} is an apocalyptic number.

20011003023320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20011003023320 is an abundant number, since it is smaller than the sum of its proper divisors (25090261381000).

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

20011003023320 is a wasteful number, since it uses less digits than its factorization.

20011003023320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64164 (or 64160 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20011003023320 its reverse (2332030011002), we get a palindrome (22343033034322).

The spelling of 20011003023320 in words is "twenty trillion, eleven billion, three million, twenty-three thousand, three hundred twenty".