1303331020 has 24 divisors (see below), whose sum is σ = 2737673568. Its totient is φ = 521203200.

The previous prime is 1303330979. The next prime is 1303331053. The reversal of 1303331020 is 201333031.

It is a junction number, because it is equal to n+sod(n) for n = 1303330985 and 1303331003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152665 + ... + 160975.

It is an arithmetic number, because the mean of its divisors is an integer number (114069732).

Almost surely, 2^1303331020 is an apocalyptic number.

1303331020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303331020 is an abundant number, since it is smaller than the sum of its proper divisors (1434342548).

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

1303331020 is a wasteful number, since it uses less digits than its factorization.

1303331020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16161 (or 16159 counting only the distinct ones).

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

The square root of 1303331020 is about 36101.6761383734. The cubic root of 1303331020 is about 1092.3242550782.

Adding to 1303331020 its reverse (201333031), we get a palindrome (1504664051).

The spelling of 1303331020 in words is "one billion, three hundred three million, three hundred thirty-one thousand, twenty".