2103909903421 has 8 divisors (see below), whose sum is σ = 2226305153664. Its totient is φ = 1984091395440.

The previous prime is 2103909903409. The next prime is 2103909903461. The reversal of 2103909903421 is 1243099093012.

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

It is not a de Polignac number, because 2103909903421 - 2¹³ = 2103909895229 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 (2103909903461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644183886 + ... + 644187151.

It is an arithmetic number, because the mean of its divisors is an integer number (278288144208).

Almost surely, 2^{2103909903421} is an apocalyptic number.

It is an amenable number.

2103909903421 is a deficient number, since it is larger than the sum of its proper divisors (122395250243).

2103909903421 is a wasteful number, since it uses less digits than its factorization.

2103909903421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288371131.

The product of its (nonzero) digits is 104976, while the sum is 43.

The spelling of 2103909903421 in words is "two trillion, one hundred three billion, nine hundred nine million, nine hundred three thousand, four hundred twenty-one".