203122012424 has 16 divisors (see below), whose sum is σ = 403256936700. Its totient is φ = 95586829312.

The previous prime is 203122012417. The next prime is 203122012447. The reversal of 203122012424 is 424210221302.

It can be written as a sum of positive squares in 2 ways, for example, as 202779096100 + 342916324 = 450310^2 + 18518^2 .

It is a super-2 number, since 2×203122012424² (a number of 23 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 203122012424.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746771969 + ... + 746772240.

Almost surely, 2^203122012424 is an apocalyptic number.

It is an amenable number.

203122012424 is a deficient number, since it is larger than the sum of its proper divisors (200134924276).

203122012424 is a wasteful number, since it uses less digits than its factorization.

203122012424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493544232 (or 1493544228 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 203122012424 its reverse (424210221302), we get a palindrome (627332233726).

The spelling of 203122012424 in words is "two hundred three billion, one hundred twenty-two million, twelve thousand, four hundred twenty-four".