204013312423 has 2 divisors, whose sum is σ = 204013312424. Its totient is φ = 204013312422.

The previous prime is 204013312417. The next prime is 204013312441. The reversal of 204013312423 is 324213310402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204013312423 - 2²¹ = 204011215271 is a prime.

It is a super-2 number, since 2×204013312423² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204013312453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102006656211 + 102006656212.

It is an arithmetic number, because the mean of its divisors is an integer number (102006656212).

Almost surely, 2^204013312423 is an apocalyptic number.

204013312423 is a deficient number, since it is larger than the sum of its proper divisors (1).

204013312423 is an equidigital number, since it uses as much as digits as its factorization.

204013312423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 204013312423 its reverse (324213310402), we get a palindrome (528226622825).

The spelling of 204013312423 in words is "two hundred four billion, thirteen million, three hundred twelve thousand, four hundred twenty-three".