31023130101320 has 64 divisors (see below), whose sum is σ = 84466337431680. Its totient is φ = 10010825174016.

The previous prime is 31023130101221. The next prime is 31023130101407. The reversal of 31023130101320 is 2310103132013.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 31023130101292 and 31023130101301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3258727394 + ... + 3258736913.

It is an arithmetic number, because the mean of its divisors is an integer number (1319786522370).

Almost surely, 2^{31023130101320} is an apocalyptic number.

It is an amenable number.

31023130101320 is an abundant number, since it is smaller than the sum of its proper divisors (53443207330360).

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

31023130101320 is a wasteful number, since it uses less digits than its factorization.

31023130101320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6517464342 (or 6517464338 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31023130101320 its reverse (2310103132013), we get a palindrome (33333233233333).

The spelling of 31023130101320 in words is "thirty-one trillion, twenty-three billion, one hundred thirty million, one hundred one thousand, three hundred twenty".