12163442943 has 32 divisors (see below), whose sum is σ = 16999315200. Its totient is φ = 7726150656.

The previous prime is 12163442927. The next prime is 12163442953. The reversal of 12163442943 is 34924436121.

It is a happy number.

It is a Cunningham number, because it is equal to 110288²-1.

It is not a de Polignac number, because 12163442943 - 2⁴ = 12163442927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12163442953) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3196480 + ... + 3200282.

It is an arithmetic number, because the mean of its divisors is an integer number (531228600).

Almost surely, 2^12163442943 is an apocalyptic number.

12163442943 is a deficient number, since it is larger than the sum of its proper divisors (4835872257).

12163442943 is a wasteful number, since it uses less digits than its factorization.

12163442943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4311.

The product of its digits is 124416, while the sum is 39.

The spelling of 12163442943 in words is "twelve billion, one hundred sixty-three million, four hundred forty-two thousand, nine hundred forty-three".