12342134021 has 8 divisors (see below), whose sum is σ = 14113978560. Its totient is φ = 10572460128.

The previous prime is 12342133997. The next prime is 12342134027. The reversal of 12342134021 is 12043124321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12342134021 - 2⁶ = 12342133957 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 (12342134027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 530456 + ... + 553233.

It is an arithmetic number, because the mean of its divisors is an integer number (1764247320).

Almost surely, 2^12342134021 is an apocalyptic number.

It is an amenable number.

12342134021 is a deficient number, since it is larger than the sum of its proper divisors (1771844539).

12342134021 is a wasteful number, since it uses less digits than its factorization.

12342134021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085323.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12342134021 its reverse (12043124321), we get a palindrome (24385258342).

The spelling of 12342134021 in words is "twelve billion, three hundred forty-two million, one hundred thirty-four thousand, twenty-one".