2143101421 has 8 divisors (see below), whose sum is σ = 2218597920. Its totient is φ = 2067711408.

The previous prime is 2143101377. The next prime is 2143101437. The reversal of 2143101421 is 1241013412.

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 2143101421 - 2⁷ = 2143101293 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 (2143101451) 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, 15490 + ... + 67276.

It is an arithmetic number, because the mean of its divisors is an integer number (277324740).

Almost surely, 2^2143101421 is an apocalyptic number.

It is an amenable number.

2143101421 is a deficient number, since it is larger than the sum of its proper divisors (75496499).

2143101421 is a wasteful number, since it uses less digits than its factorization.

2143101421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53243.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 2143101421 is about 46293.6434189404. The cubic root of 2143101421 is about 1289.2809768250.

Adding to 2143101421 its reverse (1241013412), we get a palindrome (3384114833).

The spelling of 2143101421 in words is "two billion, one hundred forty-three million, one hundred one thousand, four hundred twenty-one".