1300302000021 has 4 divisors (see below), whose sum is σ = 1733736000032. Its totient is φ = 866868000012.

The previous prime is 1300302000013. The next prime is 1300302000037. The reversal of 1300302000021 is 1200002030031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1300302000021 - 2³ = 1300302000013 is a prime.

It is a super-2 number, since 2×1300302000021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1300301999970 and 1300302000006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300302000061) 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, 216717000001 + ... + 216717000006.

It is an arithmetic number, because the mean of its divisors is an integer number (433434000008).

Almost surely, 2^{1300302000021} is an apocalyptic number.

It is an amenable number.

1300302000021 is a deficient number, since it is larger than the sum of its proper divisors (433434000011).

1300302000021 is an equidigital number, since it uses as much as digits as its factorization.

1300302000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433434000010.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 1300302000021 its reverse (1200002030031), we get a palindrome (2500304030052).

The spelling of 1300302000021 in words is "one trillion, three hundred billion, three hundred two million, twenty-one", and thus it is an aban number.