12355434026 has 8 divisors (see below), whose sum is σ = 19958778084. Its totient is φ = 5702508000.

The previous prime is 12355434011. The next prime is 12355434031. The reversal of 12355434026 is 62043455321.

It is a Cunningham number, because it is equal to 111155²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 12355434025 + 1 = 111155^2 + 1^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237604475 + ... + 237604526.

Almost surely, 2^12355434026 is an apocalyptic number.

12355434026 is a deficient number, since it is larger than the sum of its proper divisors (7603344058).

12355434026 is a wasteful number, since it uses less digits than its factorization.

12355434026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475209016.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 12355434026 its reverse (62043455321), we get a palindrome (74398889347).

The spelling of 12355434026 in words is "twelve billion, three hundred fifty-five million, four hundred thirty-four thousand, twenty-six".