101001344021 has 4 divisors (see below), whose sum is σ = 101021948832. Its totient is φ = 100980739212.

The previous prime is 101001343991. The next prime is 101001344039. The reversal of 101001344021 is 120443100101.

It is a happy number.

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: 120443100101 = 439 ⋅274357859.

It is a cyclic number.

It is not a de Polignac number, because 101001344021 - 2²² = 100997149717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101001344051) 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, 10295051 + ... + 10304856.

It is an arithmetic number, because the mean of its divisors is an integer number (25255487208).

Almost surely, 2^101001344021 is an apocalyptic number.

It is an amenable number.

101001344021 is a deficient number, since it is larger than the sum of its proper divisors (20604811).

101001344021 is an equidigital number, since it uses as much as digits as its factorization.

101001344021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20604810.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 101001344021 its reverse (120443100101), we get a palindrome (221444444122).

The spelling of 101001344021 in words is "one hundred one billion, one million, three hundred forty-four thousand, twenty-one".