101303342021 has 4 divisors (see below), whose sum is σ = 115775248032. Its totient is φ = 86831436012.

The previous prime is 101303342011. The next prime is 101303342099. The reversal of 101303342021 is 120243303101.

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, and also an emirpimes, since its reverse is a distinct semiprime: 120243303101 = 491 ⋅244894711.

It is a cyclic number.

It is not a de Polignac number, because 101303342021 - 2¹⁸ = 101303079877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 101303341984 and 101303342002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101303342011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7235952995 + ... + 7235953008.

It is an arithmetic number, because the mean of its divisors is an integer number (28943812008).

Almost surely, 2^101303342021 is an apocalyptic number.

It is an amenable number.

101303342021 is a deficient number, since it is larger than the sum of its proper divisors (14471906011).

101303342021 is an equidigital number, since it uses as much as digits as its factorization.

101303342021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14471906010.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 101303342021 its reverse (120243303101), we get a palindrome (221546645122).

The spelling of 101303342021 in words is "one hundred one billion, three hundred three million, three hundred forty-two thousand, twenty-one".