1303012120 has 16 divisors (see below), whose sum is σ = 2931777360. Its totient is φ = 521204832.

The previous prime is 1303012099. The next prime is 1303012121. The reversal of 1303012120 is 212103031.

It is a self number, because there is not a number n which added to its sum of digits gives 1303012120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303012121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16287612 + ... + 16287691.

It is an arithmetic number, because the mean of its divisors is an integer number (183236085).

Almost surely, 2^1303012120 is an apocalyptic number.

1303012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303012120 is an abundant number, since it is smaller than the sum of its proper divisors (1628765240).

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

1303012120 is a wasteful number, since it uses less digits than its factorization.

1303012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32575314 (or 32575310 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1303012120 is about 36097.2591757324. The cubic root of 1303012120 is about 1092.2351575749.

Adding to 1303012120 its reverse (212103031), we get a palindrome (1515115151).

The spelling of 1303012120 in words is "one billion, three hundred three million, twelve thousand, one hundred twenty".