203123313200434 has 16 divisors (see below), whose sum is σ = 332874568884096. Its totient is φ = 92192399431600.

The previous prime is 203123313200351. The next prime is 203123313200441. The reversal of 203123313200434 is 434002313321302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 203123313200396 and 203123313200405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6818949562 + ... + 6818979349.

It is an arithmetic number, because the mean of its divisors is an integer number (20804660555256).

Almost surely, 2^{203123313200434} is an apocalyptic number.

203123313200434 is a deficient number, since it is larger than the sum of its proper divisors (129751255683662).

203123313200434 is a wasteful number, since it uses less digits than its factorization.

203123313200434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13637929601.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 203123313200434 its reverse (434002313321302), we get a palindrome (637125626521736).

The spelling of 203123313200434 in words is "two hundred three trillion, one hundred twenty-three billion, three hundred thirteen million, two hundred thousand, four hundred thirty-four".