203430043444 has 12 divisors (see below), whose sum is σ = 356517779968. Its totient is φ = 101567820600.

The previous prime is 203430043387. The next prime is 203430043493. The reversal of 203430043444 is 444340034302.

It is a super-2 number, since 2×203430043444² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36797172 + ... + 36802699.

Almost surely, 2^203430043444 is an apocalyptic number.

It is an amenable number.

203430043444 is a deficient number, since it is larger than the sum of its proper divisors (153087736524).

203430043444 is a wasteful number, since it uses less digits than its factorization.

203430043444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73600566 (or 73600564 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 31.

Adding to 203430043444 its reverse (444340034302), we get a palindrome (647770077746).

The spelling of 203430043444 in words is "two hundred three billion, four hundred thirty million, forty-three thousand, four hundred forty-four".