1305303012 has 120 divisors (see below), whose sum is σ = 3760788416. Its totient is φ = 392236992.

The previous prime is 1305303007. The next prime is 1305303023. The reversal of 1305303012 is 2103035031.

1305303012 is a `hidden beast` number, since 130 + 530 + 3 + 0 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 177513 + ... + 184719.

Almost surely, 2^1305303012 is an apocalyptic number.

1305303012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1305303012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1880394208).

1305303012 is an abundant number, since it is smaller than the sum of its proper divisors (2455485404).

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

1305303012 is a wasteful number, since it uses less digits than its factorization.

1305303012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7279 (or 7268 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 1305303012 is about 36128.9774557764. The cubic root of 1305303012 is about 1092.8748875682.

Adding to 1305303012 its reverse (2103035031), we get a palindrome (3408338043).

The spelling of 1305303012 in words is "one billion, three hundred five million, three hundred three thousand, twelve".