101344144021 has 4 divisors (see below), whose sum is σ = 101344832512. Its totient is φ = 101343455532.

The previous prime is 101344143931. The next prime is 101344144051. The reversal of 101344144021 is 120441443101.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101344144021 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 (101344144051) 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, 24375 + ... + 450868.

It is an arithmetic number, because the mean of its divisors is an integer number (25336208128).

Almost surely, 2^101344144021 is an apocalyptic number.

It is an amenable number.

101344144021 is a deficient number, since it is larger than the sum of its proper divisors (688491).

101344144021 is an equidigital number, since it uses as much as digits as its factorization.

101344144021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688490.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 101344144021 its reverse (120441443101), we get a palindrome (221785587122).

The spelling of 101344144021 in words is "one hundred one billion, three hundred forty-four million, one hundred forty-four thousand, twenty-one".