311331053 has 8 divisors (see below), whose sum is σ = 340195296. Its totient is φ = 282560400.

The previous prime is 311331029. The next prime is 311331071. The reversal of 311331053 is 350133113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 311331053 - 2¹⁶ = 311265517 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 (311331073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16343 + ... + 29828.

It is an arithmetic number, because the mean of its divisors is an integer number (42524412).

Almost surely, 2^311331053 is an apocalyptic number.

It is an amenable number.

311331053 is a deficient number, since it is larger than the sum of its proper divisors (28864243).

311331053 is a wasteful number, since it uses less digits than its factorization.

311331053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46795.

The product of its (nonzero) digits is 405, while the sum is 20.

The square root of 311331053 is about 17644.5757387363. The cubic root of 311331053 is about 677.7572108354.

Adding to 311331053 its reverse (350133113), we get a palindrome (661464166).

The spelling of 311331053 in words is "three hundred eleven million, three hundred thirty-one thousand, fifty-three".