12355423251 has 8 divisors (see below), whose sum is σ = 17442950544. Its totient is φ = 7752422400.

The previous prime is 12355423211. The next prime is 12355423261. The reversal of 12355423251 is 15232455321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12355423251 - 2¹⁰ = 12355422227 is a prime.

It is a super-2 number, since 2×12355423251² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12355423211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121131550 + ... + 121131651.

It is an arithmetic number, because the mean of its divisors is an integer number (2180368818).

Almost surely, 2^12355423251 is an apocalyptic number.

12355423251 is a deficient number, since it is larger than the sum of its proper divisors (5087527293).

12355423251 is a wasteful number, since it uses less digits than its factorization.

12355423251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242263221.

The product of its digits is 36000, while the sum is 33.

Adding to 12355423251 its reverse (15232455321), we get a palindrome (27587878572).

The spelling of 12355423251 in words is "twelve billion, three hundred fifty-five million, four hundred twenty-three thousand, two hundred fifty-one".