1303032220 has 24 divisors (see below), whose sum is σ = 3127277664. Its totient is φ = 446753856.

The previous prime is 1303032187. The next prime is 1303032233. The reversal of 1303032220 is 222303031.

It is a junction number, because it is equal to n+sod(n) for n = 1303032194 and 1303032203.

It is a congruent number.

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, 4653547 + ... + 4653826.

It is an arithmetic number, because the mean of its divisors is an integer number (130303236).

Almost surely, 2^1303032220 is an apocalyptic number.

1303032220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303032220 is an abundant number, since it is smaller than the sum of its proper divisors (1824245444).

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

1303032220 is a wasteful number, since it uses less digits than its factorization.

1303032220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9307389 (or 9307387 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 1303032220 is about 36097.5375891487. The cubic root of 1303032220 is about 1092.2407737452.

Adding to 1303032220 its reverse (222303031), we get a palindrome (1525335251).

The spelling of 1303032220 in words is "one billion, three hundred three million, thirty-two thousand, two hundred twenty".