20120313223 has 12 divisors (see below), whose sum is σ = 20669969880. Its totient is φ = 19584798576.

The previous prime is 20120313209. The next prime is 20120313259. The reversal of 20120313223 is 32231302102.

It is not a de Polignac number, because 20120313223 - 2¹⁷ = 20120182151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20120313223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120313623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 523188 + ... + 560326.

It is an arithmetic number, because the mean of its divisors is an integer number (1722497490).

Almost surely, 2^20120313223 is an apocalyptic number.

20120313223 is a deficient number, since it is larger than the sum of its proper divisors (549656657).

20120313223 is an equidigital number, since it uses as much as digits as its factorization.

20120313223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37518 (or 37475 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20120313223 its reverse (32231302102), we get a palindrome (52351615325).

The spelling of 20120313223 in words is "twenty billion, one hundred twenty million, three hundred thirteen thousand, two hundred twenty-three".