12342117021 has 16 divisors (see below), whose sum is σ = 17724013440. Its totient is φ = 7594292160.

The previous prime is 12342117001. The next prime is 12342117061. The reversal of 12342117021 is 12071124321.

It is not a de Polignac number, because 12342117021 - 2¹³ = 12342108829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12342116982 and 12342117000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12342117001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 629200 + ... + 648518.

It is an arithmetic number, because the mean of its divisors is an integer number (1107750840).

Almost surely, 2^12342117021 is an apocalyptic number.

It is an amenable number.

12342117021 is a deficient number, since it is larger than the sum of its proper divisors (5381896419).

12342117021 is a wasteful number, since it uses less digits than its factorization.

12342117021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35716.

The product of its (nonzero) digits is 672, while the sum is 24.

The spelling of 12342117021 in words is "twelve billion, three hundred forty-two million, one hundred seventeen thousand, twenty-one".