200400004423123 has 16 divisors (see below), whose sum is σ = 202033727490816. Its totient is φ = 198770347749600.

The previous prime is 200400004423057. The next prime is 200400004423141. The reversal of 200400004423123 is 321324400004002.

It is a happy number.

200400004423123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 200400004423123 - 2¹³ = 200400004414931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200400004423523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2356855936 + ... + 2356940962.

It is an arithmetic number, because the mean of its divisors is an integer number (12627107968176).

Almost surely, 2^{200400004423123} is an apocalyptic number.

200400004423123 is a deficient number, since it is larger than the sum of its proper divisors (1633723067693).

200400004423123 is a wasteful number, since it uses less digits than its factorization.

200400004423123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108714.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 200400004423123 its reverse (321324400004002), we get a palindrome (521724404427125).

The spelling of 200400004423123 in words is "two hundred trillion, four hundred billion, four million, four hundred twenty-three thousand, one hundred twenty-three".