311014021 has 8 divisors (see below), whose sum is σ = 327640320. Its totient is φ = 294413472.

The previous prime is 311014003. The next prime is 311014049. The reversal of 311014021 is 120410113.

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 311014021 - 2⁹ = 311013509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311013992 and 311014010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311014321) 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, 21516 + ... + 32938.

It is an arithmetic number, because the mean of its divisors is an integer number (40955040).

Almost surely, 2^311014021 is an apocalyptic number.

It is an amenable number.

311014021 is a deficient number, since it is larger than the sum of its proper divisors (16626299).

311014021 is a wasteful number, since it uses less digits than its factorization.

311014021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12875.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 311014021 is about 17635.5896130524. The cubic root of 311014021 is about 677.5270767082.

Adding to 311014021 its reverse (120410113), we get a palindrome (431424134).

The spelling of 311014021 in words is "three hundred eleven million, fourteen thousand, twenty-one".