20533001373 has 12 divisors (see below), whose sum is σ = 30615515008. Its totient is φ = 13247097480.

The previous prime is 20533001329. The next prime is 20533001381. The reversal of 20533001373 is 37310033502.

It is not a de Polignac number, because 20533001373 - 2⁶ = 20533001309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20533001323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36797215 + ... + 36797772.

Almost surely, 2^20533001373 is an apocalyptic number.

It is an amenable number.

20533001373 is a deficient number, since it is larger than the sum of its proper divisors (10082513635).

20533001373 is a wasteful number, since it uses less digits than its factorization.

20533001373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73595024 (or 73595021 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 27.

Adding to 20533001373 its reverse (37310033502), we get a palindrome (57843034875).

The spelling of 20533001373 in words is "twenty billion, five hundred thirty-three million, one thousand, three hundred seventy-three".