2134231021 has 8 divisors (see below), whose sum is σ = 2309955200. Its totient is φ = 1960157232.

The previous prime is 2134231007. The next prime is 2134231039. The reversal of 2134231021 is 1201324312.

It is a happy number.

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 2134231021 - 2⁷ = 2134230893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2134231021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2134231081) 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, 409905 + ... + 415078.

It is an arithmetic number, because the mean of its divisors is an integer number (288744400).

Almost surely, 2^2134231021 is an apocalyptic number.

It is an amenable number.

2134231021 is a deficient number, since it is larger than the sum of its proper divisors (175724179).

2134231021 is a wasteful number, since it uses less digits than its factorization.

2134231021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825195.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2134231021 is about 46197.7382671490. The cubic root of 2134231021 is about 1287.4997183020.

Adding to 2134231021 its reverse (1201324312), we get a palindrome (3335555333).

The spelling of 2134231021 in words is "two billion, one hundred thirty-four million, two hundred thirty-one thousand, twenty-one".