134124435424021 has 4 divisors (see below), whose sum is σ = 153285069056032. Its totient is φ = 114963801792012.

The previous prime is 134124435424019. The next prime is 134124435424037. The reversal of 134124435424021 is 120424534421431.

134124435424021 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

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 134124435424021 - 2¹ = 134124435424019 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 (134124435424621) 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, 9580316815995 + ... + 9580316816008.

It is an arithmetic number, because the mean of its divisors is an integer number (38321267264008).

Almost surely, 2^{134124435424021} is an apocalyptic number.

It is an amenable number.

134124435424021 is a deficient number, since it is larger than the sum of its proper divisors (19160633632011).

134124435424021 is an equidigital number, since it uses as much as digits as its factorization.

134124435424021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19160633632010.

The product of its (nonzero) digits is 368640, while the sum is 40.

Adding to 134124435424021 its reverse (120424534421431), we get a palindrome (254548969845452).

The spelling of 134124435424021 in words is "one hundred thirty-four trillion, one hundred twenty-four billion, four hundred thirty-five million, four hundred twenty-four thousand, twenty-one".