1300030021005 has 16 divisors (see below), whose sum is σ = 2080062167040. Its totient is φ = 693344633408.

The previous prime is 1300030020911. The next prime is 1300030021007. The reversal of 1300030021005 is 5001200300031.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1300030021005 - 2¹⁵ = 1300029988237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300030021007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4184884 + ... + 4484786.

It is an arithmetic number, because the mean of its divisors is an integer number (130003885440).

Almost surely, 2^{1300030021005} is an apocalyptic number.

1300030021005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1300030021005 is a deficient number, since it is larger than the sum of its proper divisors (780032146035).

1300030021005 is a wasteful number, since it uses less digits than its factorization.

1300030021005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588900.

The product of its (nonzero) digits is 90, while the sum is 15.

Adding to 1300030021005 its reverse (5001200300031), we get a palindrome (6301230321036).

The spelling of 1300030021005 in words is "one trillion, three hundred billion, thirty million, twenty-one thousand, five".