20273130512 has 20 divisors (see below), whose sum is σ = 40546262016. Its totient is φ = 9809579040.

The previous prime is 20273130491. The next prime is 20273130589. The reversal of 20273130512 is 21503137202.

20273130512 is an admirable 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, 20436128 + ... + 20437119.

Almost surely, 2^20273130512 is an apocalyptic number.

It is an amenable number.

20273130512 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20273130512 is a wasteful number, since it uses less digits than its factorization.

20273130512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40873286 (or 40873280 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

Adding to 20273130512 its reverse (21503137202), we get a palindrome (41776267714).

The spelling of 20273130512 in words is "twenty billion, two hundred seventy-three million, one hundred thirty thousand, five hundred twelve".