311302013 has 8 divisors (see below), whose sum is σ = 339893280. Its totient is φ = 282759280.

The previous prime is 311302007. The next prime is 311302021. The reversal of 311302013 is 310203113.

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 311302013 - 2¹⁰ = 311300989 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 (311302513) 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, 2006 + ... + 25032.

It is an arithmetic number, because the mean of its divisors is an integer number (42486660).

Almost surely, 2^311302013 is an apocalyptic number.

It is an amenable number.

311302013 is a deficient number, since it is larger than the sum of its proper divisors (28591267).

311302013 is a wasteful number, since it uses less digits than its factorization.

311302013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24267.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 311302013 is about 17643.7528037546. The cubic root of 311302013 is about 677.7361371464.

Adding to 311302013 its reverse (310203113), we get a palindrome (621505126).

The spelling of 311302013 in words is "three hundred eleven million, three hundred two thousand, thirteen".