203410331413 has 4 divisors (see below), whose sum is σ = 204464271148. Its totient is φ = 202356391680.

The previous prime is 203410331323. The next prime is 203410331437. The reversal of 203410331413 is 314133014302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18779413444 + 184630917969 = 137038^2 + 429687^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203410331413 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 (203410332413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526969578 + ... + 526969963.

It is an arithmetic number, because the mean of its divisors is an integer number (51116067787).

Almost surely, 2^203410331413 is an apocalyptic number.

It is an amenable number.

203410331413 is a deficient number, since it is larger than the sum of its proper divisors (1053939735).

203410331413 is a wasteful number, since it uses less digits than its factorization.

203410331413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053939734.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 203410331413 its reverse (314133014302), we get a palindrome (517543345715).

The spelling of 203410331413 in words is "two hundred three billion, four hundred ten million, three hundred thirty-one thousand, four hundred thirteen".