1300021101 has 12 divisors (see below), whose sum is σ = 1879199712. Its totient is φ = 866038536.

The previous prime is 1300021069. The next prime is 1300021103. The reversal of 1300021101 is 1011200031.

It is not a de Polignac number, because 1300021101 - 2⁵ = 1300021069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300021103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40531 + ... + 65136.

It is an arithmetic number, because the mean of its divisors is an integer number (156599976).

Almost surely, 2^1300021101 is an apocalyptic number.

It is an amenable number.

1300021101 is a deficient number, since it is larger than the sum of its proper divisors (579178611).

1300021101 is a wasteful number, since it uses less digits than its factorization.

1300021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107040 (or 107037 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1300021101 is about 36055.8053716735. The cubic root of 1300021101 is about 1091.3987880243.

Adding to 1300021101 its reverse (1011200031), we get a palindrome (2311221132).

The spelling of 1300021101 in words is "one billion, three hundred million, twenty-one thousand, one hundred one".