203313103323442 has 16 divisors (see below), whose sum is σ = 359779869476352. Its totient is φ = 84323406908160.

The previous prime is 203313103323437. The next prime is 203313103323479. The reversal of 203313103323442 is 244323301313302.

It is a happy number.

It is a super-3 number, since 3×203313103323442³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203313103323398 and 203313103323407.

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, 234231685423 + ... + 234231686290.

It is an arithmetic number, because the mean of its divisors is an integer number (22486241842272).

Almost surely, 2^{203313103323442} is an apocalyptic number.

203313103323442 is a deficient number, since it is larger than the sum of its proper divisors (156466766152910).

203313103323442 is a wasteful number, since it uses less digits than its factorization.

203313103323442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468463371753.

The product of its (nonzero) digits is 93312, while the sum is 34.

Adding to 203313103323442 its reverse (244323301313302), we get a palindrome (447636404636744).

The spelling of 203313103323442 in words is "two hundred three trillion, three hundred thirteen billion, one hundred three million, three hundred twenty-three thousand, four hundred forty-two".