20001423313 has 4 divisors (see below), whose sum is σ = 20489262948. Its totient is φ = 19513583680.

The previous prime is 20001423271. The next prime is 20001423317. The reversal of 20001423313 is 31332410002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1337218624 + 18664204689 = 36568^2 + 136617^2 .

It is a cyclic number.

It is not a de Polignac number, because 20001423313 - 2⁹ = 20001422801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001423317) 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 3 ways as a sum of consecutive naturals, for example, 243919756 + ... + 243919837.

It is an arithmetic number, because the mean of its divisors is an integer number (5122315737).

Almost surely, 2^20001423313 is an apocalyptic number.

It is an amenable number.

20001423313 is a deficient number, since it is larger than the sum of its proper divisors (487839635).

20001423313 is an equidigital number, since it uses as much as digits as its factorization.

20001423313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487839634.

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

Adding to 20001423313 its reverse (31332410002), we get a palindrome (51333833315).

The spelling of 20001423313 in words is "twenty billion, one million, four hundred twenty-three thousand, three hundred thirteen".