310231220321020 has 24 divisors (see below), whose sum is σ = 663777743104224. Its totient is φ = 121751120427456.

The previous prime is 310231220320969. The next prime is 310231220321027. The reversal of 310231220321020 is 20123022132013.

It is a junction number, because it is equal to n+sod(n) for n = 310231220320982 and 310231220321000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310231220321027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146335480224 + ... + 146335482343.

It is an arithmetic number, because the mean of its divisors is an integer number (27657405962676).

Almost surely, 2^{310231220321020} is an apocalyptic number.

It is an amenable number.

310231220321020 is an abundant number, since it is smaller than the sum of its proper divisors (353546522783204).

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

310231220321020 is a wasteful number, since it uses less digits than its factorization.

310231220321020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292670962629 (or 292670962627 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 310231220321020 its reverse (20123022132013), we get a palindrome (330354242453033).

The spelling of 310231220321020 in words is "three hundred ten trillion, two hundred thirty-one billion, two hundred twenty million, three hundred twenty-one thousand, twenty".