1303112313220 has 48 divisors (see below), whose sum is σ = 2739731057280. Its totient is φ = 520636644864.

The previous prime is 1303112313199. The next prime is 1303112313301. The reversal of 1303112313220 is 223132113031.

It is a junction number, because it is equal to n+sod(n) for n = 1303112313191 and 1303112313200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80996017 + ... + 81012103.

It is an arithmetic number, because the mean of its divisors is an integer number (57077730360).

Almost surely, 2^{1303112313220} is an apocalyptic number.

1303112313220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303112313220 is an abundant number, since it is smaller than the sum of its proper divisors (1436618744060).

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

1303112313220 is a wasteful number, since it uses less digits than its factorization.

1303112313220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20572 (or 20570 counting only the distinct ones).

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

Adding to 1303112313220 its reverse (223132113031), we get a palindrome (1526244426251).

The spelling of 1303112313220 in words is "one trillion, three hundred three billion, one hundred twelve million, three hundred thirteen thousand, two hundred twenty".