12155835443 has 2 divisors, whose sum is σ = 12155835444. Its totient is φ = 12155835442.

The previous prime is 12155835437. The next prime is 12155835457. The reversal of 12155835443 is 34453855121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12155835443 - 2¹⁰ = 12155834419 is a prime.

It is a super-3 number, since 3×12155835443³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12155835443.

It is not a weakly prime, because it can be changed into another prime (12155835493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6077917721 + 6077917722.

It is an arithmetic number, because the mean of its divisors is an integer number (6077917722).

Almost surely, 2^12155835443 is an apocalyptic number.

12155835443 is a deficient number, since it is larger than the sum of its proper divisors (1).

12155835443 is an equidigital number, since it uses as much as digits as its factorization.

12155835443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288000, while the sum is 41.

The spelling of 12155835443 in words is "twelve billion, one hundred fifty-five million, eight hundred thirty-five thousand, four hundred forty-three".