200400430003423 has 12 divisors (see below), whose sum is σ = 217113910998600. Its totient is φ = 184889313606816.

The previous prime is 200400430003399. The next prime is 200400430003469. The reversal of 200400430003423 is 324300034004002.

It is not a de Polignac number, because 200400430003423 - 2¹⁷ = 200400429872351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200400433003423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 306398973 + ... + 307052326.

It is an arithmetic number, because the mean of its divisors is an integer number (18092825916550).

Almost surely, 2^{200400430003423} is an apocalyptic number.

200400430003423 is a deficient number, since it is larger than the sum of its proper divisors (16713480995177).

200400430003423 is a wasteful number, since it uses less digits than its factorization.

200400430003423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613453258 (or 613453245 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 200400430003423 its reverse (324300034004002), we get a palindrome (524700464007425).

The spelling of 200400430003423 in words is "two hundred trillion, four hundred billion, four hundred thirty million, three thousand, four hundred twenty-three".