101134042021 has 4 divisors (see below), whose sum is σ = 101188799712. Its totient is φ = 101079284332.

The previous prime is 101134042001. The next prime is 101134042027. The reversal of 101134042021 is 120240431101.

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.

It is a cyclic number.

It is not a de Polignac number, because 101134042021 - 2⁵ = 101134041989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101134042021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101134042027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27376075 + ... + 27379768.

It is an arithmetic number, because the mean of its divisors is an integer number (25297199928).

Almost surely, 2^101134042021 is an apocalyptic number.

It is an amenable number.

101134042021 is a deficient number, since it is larger than the sum of its proper divisors (54757691).

101134042021 is an equidigital number, since it uses as much as digits as its factorization.

101134042021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54757690.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 101134042021 its reverse (120240431101), we get a palindrome (221374473122).

The spelling of 101134042021 in words is "one hundred one billion, one hundred thirty-four million, forty-two thousand, twenty-one".