203430003020430 has 64 divisors (see below), whose sum is σ = 488911206624768. Its totient is φ = 54172566446720.

The previous prime is 203430003020383. The next prime is 203430003020473. The reversal of 203430003020430 is 34020300034302.

It is a super-2 number, since 2×203430003020430² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 203430003020430.

It is a congruent number.

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, 100192720 + ... + 102202940.

It is an arithmetic number, because the mean of its divisors is an integer number (7639237603512).

Almost surely, 2^{203430003020430} is an apocalyptic number.

203430003020430 is an abundant number, since it is smaller than the sum of its proper divisors (285481203604338).

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

203430003020430 is a wasteful number, since it uses less digits than its factorization.

203430003020430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014921.

The product of its (nonzero) digits is 5184, while the sum is 24.

Adding to 203430003020430 its reverse (34020300034302), we get a palindrome (237450303054732).

The spelling of 203430003020430 in words is "two hundred three trillion, four hundred thirty billion, three million, twenty thousand, four hundred thirty".