1302321310220 has 48 divisors (see below), whose sum is σ = 3125636398080. Its totient is φ = 446500841664.

The previous prime is 1302321310219. The next prime is 1302321310243. The reversal of 1302321310220 is 220131232031.

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 = 1302321310192 and 1302321310201.

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, 11964401 + ... + 12072759.

It is an arithmetic number, because the mean of its divisors is an integer number (65117424960).

Almost surely, 2^{1302321310220} is an apocalyptic number.

1302321310220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1302321310220 is an abundant number, since it is smaller than the sum of its proper divisors (1823315087860).

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

1302321310220 is a wasteful number, since it uses less digits than its factorization.

1302321310220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194222 (or 194220 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1302321310220 its reverse (220131232031), we get a palindrome (1522452542251).

The spelling of 1302321310220 in words is "one trillion, three hundred two billion, three hundred twenty-one million, three hundred ten thousand, two hundred twenty".