1305020002 has 16 divisors (see below), whose sum is σ = 2299756032. Its totient is φ = 547560720.

The previous prime is 1305019993. The next prime is 1305020099. The reversal of 1305020002 is 2000205031.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2281218 + ... + 2281789.

It is an arithmetic number, because the mean of its divisors is an integer number (143734752).

Almost surely, 2^1305020002 is an apocalyptic number.

1305020002 is a deficient number, since it is larger than the sum of its proper divisors (994736030).

1305020002 is a wasteful number, since it uses less digits than its factorization.

1305020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4563033.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 1305020002 is about 36125.0605812641. The cubic root of 1305020002 is about 1092.7958977666.

Adding to 1305020002 its reverse (2000205031), we get a palindrome (3305225033).

The spelling of 1305020002 in words is "one billion, three hundred five million, twenty thousand, two".