203141431421242 has 16 divisors (see below), whose sum is σ = 307158646545000. Its totient is φ = 100758197624832.

The previous prime is 203141431421221. The next prime is 203141431421261. The reversal of 203141431421242 is 242124134141302.

It can be written as a sum of positive squares in 4 ways, for example, as 127131961628961 + 76009469792281 = 11275281^2 + 8718341^2 .

It is a junction number, because it is equal to n+sod(n) for n = 203141431421198 and 203141431421207.

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, 745293117 + ... + 745565632.

Almost surely, 2^{203141431421242} is an apocalyptic number.

203141431421242 is a deficient number, since it is larger than the sum of its proper divisors (104017215123758).

203141431421242 is a wasteful number, since it uses less digits than its factorization.

203141431421242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490859297.

The product of its (nonzero) digits is 36864, while the sum is 34.

Adding to 203141431421242 its reverse (242124134141302), we get a palindrome (445265565562544).

The spelling of 203141431421242 in words is "two hundred three trillion, one hundred forty-one billion, four hundred thirty-one million, four hundred twenty-one thousand, two hundred forty-two".