20313223252 has 12 divisors (see below), whose sum is σ = 40626446560. Its totient is φ = 8705667096.

The previous prime is 20313223243. The next prime is 20313223253. The reversal of 20313223252 is 25232231302.

20313223252 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313223253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362736102 + ... + 362736157.

Almost surely, 2^20313223252 is an apocalyptic number.

It is an amenable number.

20313223252 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.

20313223252 is a wasteful number, since it uses less digits than its factorization.

20313223252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725472270 (or 725472268 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 20313223252 its reverse (25232231302), we get a palindrome (45545454554).

The spelling of 20313223252 in words is "twenty billion, three hundred thirteen million, two hundred twenty-three thousand, two hundred fifty-two".