311053 has 4 divisors (see below), whose sum is σ = 315388. Its totient is φ = 306720.

The previous prime is 311041. The next prime is 311099. The reversal of 311053 is 350113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 350113 = 19 ⋅18427.

It can be written as a sum of positive squares in 2 ways, for example, as 252004 + 59049 = 502^2 + 243^2 .

It is a cyclic number.

It is not a de Polignac number, because 311053 - 2⁵ = 311021 is a prime.

It is a Duffinian number.

311053 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2058 + ... + 2203.

It is an arithmetic number, because the mean of its divisors is an integer number (78847).

2³¹¹⁰⁵³ is an apocalyptic number.

It is an amenable number.

311053 is a deficient number, since it is larger than the sum of its proper divisors (4335).

311053 is an equidigital number, since it uses as much as digits as its factorization.

311053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4334.

The product of its (nonzero) digits is 45, while the sum is 13.

The square root of 311053 is about 557.7212565431. The cubic root of 311053 is about 67.7555380067.

Adding to 311053 its reverse (350113), we get a palindrome (661166).

Subtracting 311053 from its reverse (350113), we obtain a triangular number (39060 = T₂₇₉).

The spelling of 311053 in words is "three hundred eleven thousand, fifty-three".