204003123451 has 2 divisors, whose sum is σ = 204003123452. Its totient is φ = 204003123450.

The previous prime is 204003123421. The next prime is 204003123469. The reversal of 204003123451 is 154321300402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204003123451 - 2⁷ = 204003123323 is a prime.

It is a super-2 number, since 2×204003123451² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (204003123421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102001561725 + 102001561726.

It is an arithmetic number, because the mean of its divisors is an integer number (102001561726).

Almost surely, 2^204003123451 is an apocalyptic number.

204003123451 is a deficient number, since it is larger than the sum of its proper divisors (1).

204003123451 is an equidigital number, since it uses as much as digits as its factorization.

204003123451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 204003123451 its reverse (154321300402), we get a palindrome (358324423853).

The spelling of 204003123451 in words is "two hundred four billion, three million, one hundred twenty-three thousand, four hundred fifty-one".