1301034300021 has 36 divisors (see below), whose sum is σ = 1997699567812. Its totient is φ = 815771049984.

The previous prime is 1301034300019. The next prime is 1301034300029. The reversal of 1301034300021 is 1200034301031.

1301034300021 is a `hidden beast` number, since 1 + 301 + 0 + 343 + 0 + 0 + 0 + 21 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 190170999396 + 1110863300625 = 436086^2 + 1053975^2 .

It is not a de Polignac number, because 1301034300021 - 2¹ = 1301034300019 is a prime.

It is a super-2 number, since 2×1301034300021² (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 = 1301034299967 and 1301034300003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301034300029) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3607125 + ... + 3951381.

Almost surely, 2^{1301034300021} is an apocalyptic number.

It is an amenable number.

1301034300021 is a deficient number, since it is larger than the sum of its proper divisors (696665267791).

1301034300021 is a wasteful number, since it uses less digits than its factorization.

1301034300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345750 (or 345730 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1301034300021 its reverse (1200034301031), we get a palindrome (2501068601052).

The spelling of 1301034300021 in words is "one trillion, three hundred one billion, thirty-four million, three hundred thousand, twenty-one".