203005001312 has 24 divisors (see below), whose sum is σ = 400340106936. Its totient is φ = 101331323392.

The previous prime is 203005001293. The next prime is 203005001323. The reversal of 203005001312 is 213100500302.

It is a super-2 number, since 2×203005001312² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5330018 + ... + 5367969.

It is an arithmetic number, because the mean of its divisors is an integer number (16680837789).

Almost surely, 2^203005001312 is an apocalyptic number.

It is an amenable number.

203005001312 is a deficient number, since it is larger than the sum of its proper divisors (197335105624).

203005001312 is a wasteful number, since it uses less digits than its factorization.

203005001312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10698590 (or 10698582 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

Adding to 203005001312 its reverse (213100500302), we get a palindrome (416105501614).

The spelling of 203005001312 in words is "two hundred three billion, five million, one thousand, three hundred twelve".