311013013 has 8 divisors (see below), whose sum is σ = 316704960. Its totient is φ = 305335200.

The previous prime is 311012993. The next prime is 311013019. The reversal of 311013013 is 310310113.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311013013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311012984 and 311013002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311013019) 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, 47488 + ... + 53638.

It is an arithmetic number, because the mean of its divisors is an integer number (39588120).

Almost surely, 2^311013013 is an apocalyptic number.

It is an amenable number.

311013013 is a deficient number, since it is larger than the sum of its proper divisors (5691947).

311013013 is an equidigital number, since it uses as much as digits as its factorization.

311013013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7067.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 311013013 is about 17635.5610344554. The cubic root of 311013013 is about 677.5263447497.

Adding to 311013013 its reverse (310310113), we get a palindrome (621323126).

The spelling of 311013013 in words is "three hundred eleven million, thirteen thousand, thirteen".