203030323002 has 72 divisors (see below), whose sum is σ = 476666412768. Its totient is φ = 62428111200.

The previous prime is 203030322997. The next prime is 203030323003. The reversal of 203030323002 is 200323030302.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (203030323003) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4574377 + ... + 4618547.

It is an arithmetic number, because the mean of its divisors is an integer number (6620366844).

Almost surely, 2^203030323002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203030323002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238333206384).

203030323002 is an abundant number, since it is smaller than the sum of its proper divisors (273636089766).

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

203030323002 is a wasteful number, since it uses less digits than its factorization.

203030323002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45716 (or 45700 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

Adding to 203030323002 its reverse (200323030302), we get a palindrome (403353353304).

The spelling of 203030323002 in words is "two hundred three billion, thirty million, three hundred twenty-three thousand, two".