203416131311 has 4 divisors (see below), whose sum is σ = 215381786112. Its totient is φ = 191450476512.

The previous prime is 203416131307. The next prime is 203416131367. The reversal of 203416131311 is 113131614302.

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

It is not a de Polignac number, because 203416131311 - 2² = 203416131307 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 (203416133311) 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, 5982827375 + ... + 5982827408.

It is an arithmetic number, because the mean of its divisors is an integer number (53845446528).

Almost surely, 2^203416131311 is an apocalyptic number.

203416131311 is a deficient number, since it is larger than the sum of its proper divisors (11965654801).

203416131311 is a wasteful number, since it uses less digits than its factorization.

203416131311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11965654800.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 203416131311 its reverse (113131614302), we get a palindrome (316547745613).

The spelling of 203416131311 in words is "two hundred three billion, four hundred sixteen million, one hundred thirty-one thousand, three hundred eleven".