101503440421 has 8 divisors (see below), whose sum is σ = 107778696984. Its totient is φ = 95262013440.

The previous prime is 101503440407. The next prime is 101503440433. The reversal of 101503440421 is 124044305101.

It can be written as a sum of positive squares in 4 ways, for example, as 3008522500 + 98494917921 = 54850^2 + 313839^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101503440421 - 2²³ = 101495051813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101503440491) 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 7 ways as a sum of consecutive naturals, for example, 8451210 + ... + 8463211.

It is an arithmetic number, because the mean of its divisors is an integer number (13472337123).

Almost surely, 2^101503440421 is an apocalyptic number.

It is an amenable number.

101503440421 is a deficient number, since it is larger than the sum of its proper divisors (6275256563).

101503440421 is a wasteful number, since it uses less digits than its factorization.

101503440421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16914791.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 101503440421 its reverse (124044305101), we get a palindrome (225547745522).

The spelling of 101503440421 in words is "one hundred one billion, five hundred three million, four hundred forty thousand, four hundred twenty-one".