2120341421 has 8 divisors (see below), whose sum is σ = 2313516000. Its totient is φ = 1927236240.

The previous prime is 2120341393. The next prime is 2120341453. The reversal of 2120341421 is 1241430212.

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 2120341421 - 2¹⁸ = 2120079277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120341393 and 2120341402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120341471) 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, 62570 + ... + 90308.

It is an arithmetic number, because the mean of its divisors is an integer number (289189500).

Almost surely, 2^2120341421 is an apocalyptic number.

It is an amenable number.

2120341421 is a deficient number, since it is larger than the sum of its proper divisors (193174579).

2120341421 is a wasteful number, since it uses less digits than its factorization.

2120341421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34699.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2120341421 is about 46047.1651787599. The cubic root of 2120341421 is about 1284.7006163103.

Adding to 2120341421 its reverse (1241430212), we get a palindrome (3361771633).

The spelling of 2120341421 in words is "two billion, one hundred twenty million, three hundred forty-one thousand, four hundred twenty-one".