203316530042 has 4 divisors (see below), whose sum is σ = 304974795066. Its totient is φ = 101658265020.

The previous prime is 203316530023. The next prime is 203316530047. The reversal of 203316530042 is 240035613302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240035613302 = 2 ⋅120017806651.

It can be written as a sum of positive squares in only one way, i.e., 191477131561 + 11839398481 = 437581^2 + 108809^2 .

It is a super-2 number, since 2×203316530042² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203316529987 and 203316530014.

It is not an unprimeable number, because it can be changed into a prime (203316530047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50829132509 + ... + 50829132512.

Almost surely, 2^203316530042 is an apocalyptic number.

203316530042 is a deficient number, since it is larger than the sum of its proper divisors (101658265024).

203316530042 is a wasteful number, since it uses less digits than its factorization.

203316530042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101658265023.

The product of its (nonzero) digits is 12960, while the sum is 29.

The spelling of 203316530042 in words is "two hundred three billion, three hundred sixteen million, five hundred thirty thousand, forty-two".