124342134421 has 4 divisors (see below), whose sum is σ = 124348900672. Its totient is φ = 124335368172.

The previous prime is 124342134391. The next prime is 124342134431. The reversal of 124342134421 is 124431243421.

It is a happy number.

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 124342134421 - 2¹³ = 124342126229 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 (124342134431) 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, 3355485 + ... + 3392338.

It is an arithmetic number, because the mean of its divisors is an integer number (31087225168).

Almost surely, 2^124342134421 is an apocalyptic number.

It is an amenable number.

124342134421 is a deficient number, since it is larger than the sum of its proper divisors (6766251).

124342134421 is an equidigital number, since it uses as much as digits as its factorization.

124342134421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6766250.

The product of its digits is 18432, while the sum is 31.

Adding to 124342134421 its reverse (124431243421), we get a palindrome (248773377842).

The spelling of 124342134421 in words is "one hundred twenty-four billion, three hundred forty-two million, one hundred thirty-four thousand, four hundred twenty-one".