101300210021 has 4 divisors (see below), whose sum is σ = 101301989100. Its totient is φ = 101298430944.

The previous prime is 101300209961. The next prime is 101300210047. The reversal of 101300210021 is 120012003101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24621061921 + 76679148100 = 156911^2 + 276910^2 .

It is a cyclic number.

It is not a de Polignac number, because 101300210021 - 2¹⁸ = 101299947877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101300209984 and 101300210011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101300210321) 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, 801206 + ... + 918983.

It is an arithmetic number, because the mean of its divisors is an integer number (25325497275).

Almost surely, 2^101300210021 is an apocalyptic number.

It is an amenable number.

101300210021 is a deficient number, since it is larger than the sum of its proper divisors (1779079).

101300210021 is an equidigital number, since it uses as much as digits as its factorization.

101300210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779078.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 101300210021 its reverse (120012003101), we get a palindrome (221312213122).

The spelling of 101300210021 in words is "one hundred one billion, three hundred million, two hundred ten thousand, twenty-one".