20001404323 has 2 divisors, whose sum is σ = 20001404324. Its totient is φ = 20001404322.

The previous prime is 20001404303. The next prime is 20001404351. The reversal of 20001404323 is 32340410002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20001404323 - 2⁹ = 20001403811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20001404323.

It is not a weakly prime, because it can be changed into another prime (20001404303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000702161 + 10000702162.

It is an arithmetic number, because the mean of its divisors is an integer number (10000702162).

Almost surely, 2^20001404323 is an apocalyptic number.

20001404323 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001404323 is an equidigital number, since it uses as much as digits as its factorization.

20001404323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20001404323 its reverse (32340410002), we get a palindrome (52341814325).

The spelling of 20001404323 in words is "twenty billion, one million, four hundred four thousand, three hundred twenty-three".