203002123434 has 64 divisors (see below), whose sum is σ = 466655454720. Its totient is φ = 58224312000.

The previous prime is 203002123403. The next prime is 203002123447. The reversal of 203002123434 is 434321200302.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1293924 + ... + 1442304.

It is an arithmetic number, because the mean of its divisors is an integer number (7291491480).

Almost surely, 2^203002123434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203002123434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233327727360).

203002123434 is an abundant number, since it is smaller than the sum of its proper divisors (263653331286).

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

203002123434 is a wasteful number, since it uses less digits than its factorization.

203002123434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149507.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 203002123434 its reverse (434321200302), we get a palindrome (637323323736).

The spelling of 203002123434 in words is "two hundred three billion, two million, one hundred twenty-three thousand, four hundred thirty-four".