1300201021 has 16 divisors (see below), whose sum is σ = 1574432640. Its totient is φ = 1048181760.

The previous prime is 1300200983. The next prime is 1300201037. The reversal of 1300201021 is 1201020031.

It is a cyclic number.

It is not a de Polignac number, because 1300201021 - 2⁹ = 1300200509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1300200989 and 1300201007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300201421) 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, 232741 + ... + 238261.

It is an arithmetic number, because the mean of its divisors is an integer number (98402040).

Almost surely, 2^1300201021 is an apocalyptic number.

It is an amenable number.

1300201021 is a deficient number, since it is larger than the sum of its proper divisors (274231619).

1300201021 is a wasteful number, since it uses less digits than its factorization.

1300201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7524.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1300201021 is about 36058.3003065868. The cubic root of 1300201021 is about 1091.4491347486.

Adding to 1300201021 its reverse (1201020031), we get a palindrome (2501221052).

The spelling of 1300201021 in words is "one billion, three hundred million, two hundred one thousand, twenty-one".