203212421342 has 16 divisors (see below), whose sum is σ = 348371048832. Its totient is φ = 87089313240.

The previous prime is 203212421323. The next prime is 203212421353. The reversal of 203212421342 is 243124212302.

It is a congruent number.

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, 804173 + ... + 1026215.

It is an arithmetic number, because the mean of its divisors is an integer number (21773190552).

Almost surely, 2^203212421342 is an apocalyptic number.

203212421342 is a deficient number, since it is larger than the sum of its proper divisors (145158627490).

203212421342 is a wasteful number, since it uses less digits than its factorization.

203212421342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287423.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 203212421342 its reverse (243124212302), we get a palindrome (446336633644).

The spelling of 203212421342 in words is "two hundred three billion, two hundred twelve million, four hundred twenty-one thousand, three hundred forty-two".