5031311 has 4 divisors (see below), whose sum is σ = 5035800. Its totient is φ = 5026824.

The previous prime is 5031287. The next prime is 5031329. The reversal of 5031311 is 1131305.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5031311 - 2¹⁰ = 5030287 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 (5031361) 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, 1025 + ... + 3333.

It is an arithmetic number, because the mean of its divisors is an integer number (1258950).

Almost surely, 2^5031311 is an apocalyptic number.

5031311 is a deficient number, since it is larger than the sum of its proper divisors (4489).

5031311 is a wasteful number, since it uses less digits than its factorization.

5031311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4488.

The product of its (nonzero) digits is 45, while the sum is 14.

The square root of 5031311 is about 2243.0584031630. The cubic root of 5031311 is about 171.3537925508.

Adding to 5031311 its reverse (1131305), we get a palindrome (6162616).

The spelling of 5031311 in words is "five million, thirty-one thousand, three hundred eleven".