4125323421 has 6 divisors (see below), whose sum is σ = 5958800510. Its totient is φ = 2750215608.

The previous prime is 4125323413. The next prime is 4125323467. The reversal of 4125323421 is 1243235214.

It can be written as a sum of positive squares in only one way, i.e., 3731499396 + 393824025 = 61086^2 + 19845^2 .

It is not a de Polignac number, because 4125323421 - 2³ = 4125323413 is a prime.

It is a super-2 number, since 2×4125323421² = 34036586655702286482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4125323821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 229184626 + ... + 229184643.

Almost surely, 2^4125323421 is an apocalyptic number.

It is an amenable number.

4125323421 is a deficient number, since it is larger than the sum of its proper divisors (1833477089).

4125323421 is a wasteful number, since it uses less digits than its factorization.

4125323421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458369275 (or 458369272 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 4125323421 is about 64228.6806730451. The cubic root of 4125323421 is about 1603.8090784060.

Adding to 4125323421 its reverse (1243235214), we get a palindrome (5368558635).

The spelling of 4125323421 in words is "four billion, one hundred twenty-five million, three hundred twenty-three thousand, four hundred twenty-one".