31322301311020 has 24 divisors (see below), whose sum is σ = 65777022423504. Its totient is φ = 12528884396736.

The previous prime is 31322301311009. The next prime is 31322301311029. The reversal of 31322301311020 is 2011310322313.

It is a junction number, because it is equal to n+sod(n) for n = 31322301310982 and 31322301311000.

It is not an unprimeable number, because it can be changed into a prime (31322301311029) 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, 5501742 + ... + 9639178.

It is an arithmetic number, because the mean of its divisors is an integer number (2740709267646).

Almost surely, 2^{31322301311020} is an apocalyptic number.

It is an amenable number.

31322301311020 is an abundant number, since it is smaller than the sum of its proper divisors (34454721112484).

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

31322301311020 is a wasteful number, since it uses less digits than its factorization.

31322301311020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4515969 (or 4515967 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31322301311020 its reverse (2011310322313), we get a palindrome (33333611633333).

The spelling of 31322301311020 in words is "thirty-one trillion, three hundred twenty-two billion, three hundred one million, three hundred eleven thousand, twenty".