203134013213 has 4 divisors (see below), whose sum is σ = 204733493760. Its totient is φ = 201534532668.

The previous prime is 203134013209. The next prime is 203134013221. The reversal of 203134013213 is 312310431302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 203134013213 - 2² = 203134013209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203134013233) by changing a digit.

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, 799740083 + ... + 799740336.

It is an arithmetic number, because the mean of its divisors is an integer number (51183373440).

Almost surely, 2^203134013213 is an apocalyptic number.

It is an amenable number.

203134013213 is a deficient number, since it is larger than the sum of its proper divisors (1599480547).

203134013213 is a wasteful number, since it uses less digits than its factorization.

203134013213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599480546.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 203134013213 its reverse (312310431302), we get a palindrome (515444444515).

The spelling of 203134013213 in words is "two hundred three billion, one hundred thirty-four million, thirteen thousand, two hundred thirteen".