203103203430 has 16 divisors (see below), whose sum is σ = 487447688304. Its totient is φ = 54160854240.

The previous prime is 203103203419. The next prime is 203103203467. The reversal of 203103203430 is 34302301302.

It is a super-2 number, since 2×203103203430² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203103203397 and 203103203406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3385053361 + ... + 3385053420.

It is an arithmetic number, because the mean of its divisors is an integer number (30465480519).

Almost surely, 2^203103203430 is an apocalyptic number.

203103203430 is an abundant number, since it is smaller than the sum of its proper divisors (284344484874).

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

203103203430 is a wasteful number, since it uses less digits than its factorization.

203103203430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6770106791.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 203103203430 its reverse (34302301302), we get a palindrome (237405504732).

The spelling of 203103203430 in words is "two hundred three billion, one hundred three million, two hundred three thousand, four hundred thirty".