203344400120323 has 48 divisors (see below), whose sum is σ = 256192345801728. Its totient is φ = 156797392896000.

The previous prime is 203344400120321. The next prime is 203344400120357. The reversal of 203344400120323 is 323021004443302.

It is a happy number.

It is not a de Polignac number, because 203344400120323 - 2¹ = 203344400120321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203344400120321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9506061958 + ... + 9506083348.

It is an arithmetic number, because the mean of its divisors is an integer number (5337340537536).

Almost surely, 2^{203344400120323} is an apocalyptic number.

203344400120323 is a deficient number, since it is larger than the sum of its proper divisors (52847945681405).

203344400120323 is a wasteful number, since it uses less digits than its factorization.

203344400120323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34724 (or 34627 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 203344400120323 its reverse (323021004443302), we get a palindrome (526365404563625).

The spelling of 203344400120323 in words is "two hundred three trillion, three hundred forty-four billion, four hundred million, one hundred twenty thousand, three hundred twenty-three".