12155053223 has 4 divisors (see below), whose sum is σ = 12155653488. Its totient is φ = 12154452960.

The previous prime is 12155053201. The next prime is 12155053237. The reversal of 12155053223 is 32235055121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32235055121 = 17 ⋅1896179713.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12155053223 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 (12155053723) 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, 268658 + ... + 310623.

It is an arithmetic number, because the mean of its divisors is an integer number (3038913372).

Almost surely, 2^12155053223 is an apocalyptic number.

12155053223 is a deficient number, since it is larger than the sum of its proper divisors (600265).

12155053223 is an equidigital number, since it uses as much as digits as its factorization.

12155053223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600264.

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 12155053223 in words is "twelve billion, one hundred fifty-five million, fifty-three thousand, two hundred twenty-three".