2134423121 has 16 divisors (see below), whose sum is σ = 2302703040. Its totient is φ = 1971889920.

The previous prime is 2134423061. The next prime is 2134423139. The reversal of 2134423121 is 1213244312.

It is not a de Polignac number, because 2134423121 - 2¹⁴ = 2134406737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2134425121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 620021 + ... + 623453.

It is an arithmetic number, because the mean of its divisors is an integer number (143918940).

Almost surely, 2^2134423121 is an apocalyptic number.

It is an amenable number.

2134423121 is a deficient number, since it is larger than the sum of its proper divisors (168279919).

2134423121 is a wasteful number, since it uses less digits than its factorization.

2134423121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4256.

The product of its digits is 1152, while the sum is 23.

The square root of 2134423121 is about 46199.8173264787. The cubic root of 2134423121 is about 1287.5383459971.

Adding to 2134423121 its reverse (1213244312), we get a palindrome (3347667433).

The spelling of 2134423121 in words is "two billion, one hundred thirty-four million, four hundred twenty-three thousand, one hundred twenty-one".