4134142112421 has 4 divisors (see below), whose sum is σ = 5512189483232. Its totient is φ = 2756094741612.

The previous prime is 4134142112407. The next prime is 4134142112437. The reversal of 4134142112421 is 1242112414314.

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 4134142112421 - 2¹⁰ = 4134142111397 is a prime.

It is a super-2 number, since 2×4134142112421² (a number of 26 digits) contains 22 as substring.

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 (4134142112461) 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 3 ways as a sum of consecutive naturals, for example, 689023685401 + ... + 689023685406.

It is an arithmetic number, because the mean of its divisors is an integer number (1378047370808).

Almost surely, 2^{4134142112421} is an apocalyptic number.

It is an amenable number.

4134142112421 is a deficient number, since it is larger than the sum of its proper divisors (1378047370811).

4134142112421 is a wasteful number, since it uses less digits than its factorization.

4134142112421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378047370810.

The product of its digits is 6144, while the sum is 30.

Adding to 4134142112421 its reverse (1242112414314), we get a palindrome (5376254526735).

The spelling of 4134142112421 in words is "four trillion, one hundred thirty-four billion, one hundred forty-two million, one hundred twelve thousand, four hundred twenty-one".