12143611933 has 4 divisors (see below), whose sum is σ = 12143834080. Its totient is φ = 12143389788.

The previous prime is 12143611889. The next prime is 12143611939. The reversal of 12143611933 is 33911634121.

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 12143611933 - 2²⁵ = 12110057501 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 (12143611939) 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, 34666 + ... + 159652.

It is an arithmetic number, because the mean of its divisors is an integer number (3035958520).

Almost surely, 2^12143611933 is an apocalyptic number.

It is an amenable number.

12143611933 is a deficient number, since it is larger than the sum of its proper divisors (222147).

12143611933 is an equidigital number, since it uses as much as digits as its factorization.

12143611933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222146.

The product of its digits is 11664, while the sum is 34.

The spelling of 12143611933 in words is "twelve billion, one hundred forty-three million, six hundred eleven thousand, nine hundred thirty-three".