34040142421 has 4 divisors (see below), whose sum is σ = 34086205600. Its totient is φ = 33994079244.

The previous prime is 34040142407. The next prime is 34040142449. The reversal of 34040142421 is 12424104043.

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 a cyclic number.

It is not a de Polignac number, because 34040142421 - 2⁹ = 34040141909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34040142481) 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, 23030481 + ... + 23031958.

It is an arithmetic number, because the mean of its divisors is an integer number (8521551400).

Almost surely, 2^34040142421 is an apocalyptic number.

It is an amenable number.

34040142421 is a deficient number, since it is larger than the sum of its proper divisors (46063179).

34040142421 is an equidigital number, since it uses as much as digits as its factorization.

34040142421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46063178.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 34040142421 its reverse (12424104043), we get a palindrome (46464246464).

The spelling of 34040142421 in words is "thirty-four billion, forty million, one hundred forty-two thousand, four hundred twenty-one".