203420341312 has 28 divisors (see below), whose sum is σ = 417581631180. Its totient is φ = 98202922496.

The previous prime is 203420341301. The next prime is 203420341351. The reversal of 203420341312 is 213143024302.

It can be written as a sum of positive squares in 2 ways, for example, as 100651369536 + 102768971776 = 317256^2 + 320576^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54798883 + ... + 54802594.

It is an arithmetic number, because the mean of its divisors is an integer number (14913629685).

Almost surely, 2^203420341312 is an apocalyptic number.

It is an amenable number.

203420341312 is an abundant number, since it is smaller than the sum of its proper divisors (214161289868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203420341312 is a wasteful number, since it uses less digits than its factorization.

203420341312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109601518 (or 109601508 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 203420341312 its reverse (213143024302), we get a palindrome (416563365614).

The spelling of 203420341312 in words is "two hundred three billion, four hundred twenty million, three hundred forty-one thousand, three hundred twelve".