311303030020 has 24 divisors (see below), whose sum is σ = 657747022464. Its totient is φ = 123757276896.

The previous prime is 311303029991. The next prime is 311303030107. The reversal of 311303030020 is 20030303113.

It is a junction number, because it is equal to n+sod(n) for n = 311303029976 and 311303030003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47742604 + ... + 47749123.

It is an arithmetic number, because the mean of its divisors is an integer number (27406125936).

Almost surely, 2^311303030020 is an apocalyptic number.

It is an amenable number.

311303030020 is an abundant number, since it is smaller than the sum of its proper divisors (346443992444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311303030020 is a wasteful number, since it uses less digits than its factorization.

311303030020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95491899 (or 95491897 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 311303030020 its reverse (20030303113), we get a palindrome (331333333133).

The spelling of 311303030020 in words is "three hundred eleven billion, three hundred three million, thirty thousand, twenty".