203323134402 has 24 divisors (see below), whose sum is σ = 441610572780. Its totient is φ = 67608668160.

The previous prime is 203323134389. The next prime is 203323134437. The reversal of 203323134402 is 204431323302.

203323134402 is a `hidden beast` number, since 20 + 3 + 3 + 231 + 3 + 4 + 402 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 202653929241 + 669205161 = 450171^2 + 25869^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13801599 + ... + 13816322.

Almost surely, 2^203323134402 is an apocalyptic number.

203323134402 is an abundant number, since it is smaller than the sum of its proper divisors (238287438378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203323134402 is a wasteful number, since it uses less digits than its factorization.

203323134402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27618338 (or 27618335 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 203323134402 its reverse (204431323302), we get a palindrome (407754457704).

The spelling of 203323134402 in words is "two hundred three billion, three hundred twenty-three million, one hundred thirty-four thousand, four hundred two".