203213413522442 has 8 divisors (see below), whose sum is σ = 307517643472356. Its totient is φ = 100707532364992.

The previous prime is 203213413522423. The next prime is 203213413522517. The reversal of 203213413522442 is 244225314312302.

It can be written as a sum of positive squares in 2 ways, for example, as 197548056722041 + 5665356800401 = 14055179^2 + 2380201^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 203213413522396 and 203213413522405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449587197833 + ... + 449587198284.

Almost surely, 2^{203213413522442} is an apocalyptic number.

203213413522442 is a deficient number, since it is larger than the sum of its proper divisors (104304229949914).

203213413522442 is a wasteful number, since it uses less digits than its factorization.

203213413522442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899174396232.

The product of its (nonzero) digits is 276480, while the sum is 38.

Adding to 203213413522442 its reverse (244225314312302), we get a palindrome (447438727834744).

The spelling of 203213413522442 in words is "two hundred three trillion, two hundred thirteen billion, four hundred thirteen million, five hundred twenty-two thousand, four hundred forty-two".