101403040021 has 4 divisors (see below), whose sum is σ = 105811867872. Its totient is φ = 96994212172.

The previous prime is 101403040009. The next prime is 101403040027. The reversal of 101403040021 is 120040304101.

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 101403040021 - 2⁵ = 101403039989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101403039977 and 101403040004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101403040027) 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, 2204413891 + ... + 2204413936.

It is an arithmetic number, because the mean of its divisors is an integer number (26452966968).

Almost surely, 2^101403040021 is an apocalyptic number.

It is an amenable number.

101403040021 is a deficient number, since it is larger than the sum of its proper divisors (4408827851).

101403040021 is an equidigital number, since it uses as much as digits as its factorization.

101403040021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4408827850.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 101403040021 its reverse (120040304101), we get a palindrome (221443344122).

The spelling of 101403040021 in words is "one hundred one billion, four hundred three million, forty thousand, twenty-one".