311440103210020 has 24 divisors (see below), whose sum is σ = 654084005500800. Its totient is φ = 124564652948832.

The previous prime is 311440103210003. The next prime is 311440103210057. The reversal of 311440103210020 is 20012301044113.

It is a junction number, because it is equal to n+sod(n) for n = 311440103209973 and 311440103210000.

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, 711546700 + ... + 711984259.

It is an arithmetic number, because the mean of its divisors is an integer number (27253500229200).

Almost surely, 2^{311440103210020} is an apocalyptic number.

It is an amenable number.

311440103210020 is an abundant number, since it is smaller than the sum of its proper divisors (342643902290780).

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

311440103210020 is a wasteful number, since it uses less digits than its factorization.

311440103210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423541907 (or 1423541905 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 311440103210020 its reverse (20012301044113), we get a palindrome (331452404254133).

The spelling of 311440103210020 in words is "three hundred eleven trillion, four hundred forty billion, one hundred three million, two hundred ten thousand, twenty".