20205233120 has 48 divisors (see below), whose sum is σ = 47897892000. Its totient is φ = 8054490624.

The previous prime is 20205233117. The next prime is 20205233123. The reversal of 20205233120 is 2133250202.

It is an interprime number because it is at equal distance from previous prime (20205233117) and next prime (20205233123).

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 = 20205233092 and 20205233101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20205233123) 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, 168620 + ... + 262379.

It is an arithmetic number, because the mean of its divisors is an integer number (997872750).

Almost surely, 2^20205233120 is an apocalyptic number.

20205233120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20205233120 is an abundant number, since it is smaller than the sum of its proper divisors (27692658880).

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

20205233120 is a wasteful number, since it uses less digits than its factorization.

20205233120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431307 (or 431299 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 20205233120 its reverse (2133250202), we get a palindrome (22338483322).

The spelling of 20205233120 in words is "twenty billion, two hundred five million, two hundred thirty-three thousand, one hundred twenty".