20231273296 has 20 divisors (see below), whose sum is σ = 42213330292. Its totient is φ = 9337510656.

The previous prime is 20231273269. The next prime is 20231273297. The reversal of 20231273296 is 69237213202.

It can be written as a sum of positive squares in 2 ways, for example, as 2948490000 + 17282783296 = 54300^2 + 131464^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231273297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48632661 + ... + 48633076.

Almost surely, 2^20231273296 is an apocalyptic number.

20231273296 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20231273296 is an abundant number, since it is smaller than the sum of its proper divisors (21982056996).

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

20231273296 is a wasteful number, since it uses less digits than its factorization.

20231273296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97265758 (or 97265752 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

Adding to 20231273296 its reverse (69237213202), we get a palindrome (89468486498).

The spelling of 20231273296 in words is "twenty billion, two hundred thirty-one million, two hundred seventy-three thousand, two hundred ninety-six".