103406542621 has 16 divisors (see below), whose sum is σ = 107680340160. Its totient is φ = 99180547200.

The previous prime is 103406542553. The next prime is 103406542633. The reversal of 103406542621 is 126245604301.

It is a cyclic number.

It is not a de Polignac number, because 103406542621 - 2³¹ = 101259058973 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 (103406540621) 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 15 ways as a sum of consecutive naturals, for example, 13472841 + ... + 13480513.

It is an arithmetic number, because the mean of its divisors is an integer number (6730021260).

Almost surely, 2^103406542621 is an apocalyptic number.

It is an amenable number.

103406542621 is a deficient number, since it is larger than the sum of its proper divisors (4273797539).

103406542621 is a wasteful number, since it uses less digits than its factorization.

103406542621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10716.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 103406542621 in words is "one hundred three billion, four hundred six million, five hundred forty-two thousand, six hundred twenty-one".