1300011020 has 48 divisors (see below), whose sum is σ = 3403669248. Its totient is φ = 405197760.

The previous prime is 1300011019. The next prime is 1300011049. The reversal of 1300011020 is 201100031.

It is a junction number, because it is equal to n+sod(n) for n = 1300010989 and 1300011007.

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, 420542 + ... + 423621.

It is an arithmetic number, because the mean of its divisors is an integer number (70909776).

Almost surely, 2^1300011020 is an apocalyptic number.

1300011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1300011020 is an abundant number, since it is smaller than the sum of its proper divisors (2103658228).

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

1300011020 is a wasteful number, since it uses less digits than its factorization.

1300011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844190 (or 844188 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 1300011020 is about 36055.6655742201. The cubic root of 1300011020 is about 1091.3959669369.

Adding to 1300011020 its reverse (201100031), we get a palindrome (1501111051).

The spelling of 1300011020 in words is "one billion, three hundred million, eleven thousand, twenty".