2003123434 has 16 divisors (see below), whose sum is σ = 3244647168. Its totient is φ = 921994992.

The previous prime is 2003123401. The next prime is 2003123459. The reversal of 2003123434 is 4343213002.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95422 + ... + 114505.

It is an arithmetic number, because the mean of its divisors is an integer number (202790448).

Almost surely, 2^2003123434 is an apocalyptic number.

2003123434 is a deficient number, since it is larger than the sum of its proper divisors (1241523734).

2003123434 is a wasteful number, since it uses less digits than its factorization.

2003123434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210309.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 2003123434 is about 44756.2669801671. The cubic root of 2003123434 is about 1260.5765887986.

Adding to 2003123434 its reverse (4343213002), we get a palindrome (6346336436).

The spelling of 2003123434 in words is "two billion, three million, one hundred twenty-three thousand, four hundred thirty-four".