31103030000320 has 56 divisors (see below), whose sum is σ = 74415104995248. Its totient is φ = 12382248883200.

The previous prime is 31103030000309. The next prime is 31103030000359. The reversal of 31103030000320 is 2300003030113.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 31103030000294 and 31103030000303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230257051 + ... + 230392090.

Almost surely, 2^{31103030000320} is an apocalyptic number.

It is an amenable number.

31103030000320 is an abundant number, since it is smaller than the sum of its proper divisors (43312074994928).

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

31103030000320 is a wasteful number, since it uses less digits than its factorization.

31103030000320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460649369 (or 460649359 counting only the distinct ones).

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

Adding to 31103030000320 its reverse (2300003030113), we get a palindrome (33403033030433).

The spelling of 31103030000320 in words is "thirty-one trillion, one hundred three billion, thirty million, three hundred twenty", and thus it is an aban number.