2134310421 has 4 divisors (see below), whose sum is σ = 2845747232. Its totient is φ = 1422873612.

The previous prime is 2134310377. The next prime is 2134310429. The reversal of 2134310421 is 1240134312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2134310421 - 2⁷ = 2134310293 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 (2134310429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355718401 + ... + 355718406.

It is an arithmetic number, because the mean of its divisors is an integer number (711436808).

Almost surely, 2^2134310421 is an apocalyptic number.

It is an amenable number.

2134310421 is a deficient number, since it is larger than the sum of its proper divisors (711436811).

2134310421 is an equidigital number, since it uses as much as digits as its factorization.

2134310421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711436810.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2134310421 is about 46198.5976085855. The cubic root of 2134310421 is about 1287.5156844289.

Adding to 2134310421 its reverse (1240134312), we get a palindrome (3374444733).

The spelling of 2134310421 in words is "two billion, one hundred thirty-four million, three hundred ten thousand, four hundred twenty-one".