2100013421 has 8 divisors (see below), whose sum is σ = 2294956800. Its totient is φ = 1905742240.

The previous prime is 2100013397. The next prime is 2100013423. The reversal of 2100013421 is 1243100012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100013421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100013396 and 2100013405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100013423) 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 7 ways as a sum of consecutive naturals, for example, 161501 + ... + 174018.

It is an arithmetic number, because the mean of its divisors is an integer number (286869600).

Almost surely, 2^2100013421 is an apocalyptic number.

It is an amenable number.

2100013421 is a deficient number, since it is larger than the sum of its proper divisors (194943379).

2100013421 is a wasteful number, since it uses less digits than its factorization.

2100013421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336099.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2100013421 is about 45825.9033844397. The cubic root of 2100013421 is about 1280.5818930218.

Adding to 2100013421 its reverse (1243100012), we get a palindrome (3343113433).

The spelling of 2100013421 in words is "two billion, one hundred million, thirteen thousand, four hundred twenty-one".