2105001433421 has 16 divisors (see below), whose sum is σ = 2172462873408. Its totient is φ = 2038099190400.

The previous prime is 2105001433363. The next prime is 2105001433439. The reversal of 2105001433421 is 1243341005012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2105001433421 - 2¹⁴ = 2105001417037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105001433721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66507626 + ... + 66539268.

It is an arithmetic number, because the mean of its divisors is an integer number (135778929588).

Almost surely, 2^{2105001433421} is an apocalyptic number.

It is an amenable number.

2105001433421 is a deficient number, since it is larger than the sum of its proper divisors (67461439987).

2105001433421 is a wasteful number, since it uses less digits than its factorization.

2105001433421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40412.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 2105001433421 its reverse (1243341005012), we get a palindrome (3348342438433).

The spelling of 2105001433421 in words is "two trillion, one hundred five billion, one million, four hundred thirty-three thousand, four hundred twenty-one".