12115105351 has 4 divisors (see below), whose sum is σ = 12134741472. Its totient is φ = 12095469232.

The previous prime is 12115105349. The next prime is 12115105459. The reversal of 12115105351 is 15350151121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12115105351 - 2¹ = 12115105349 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 (12115100351) 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, 9817135 + ... + 9818368.

It is an arithmetic number, because the mean of its divisors is an integer number (3033685368).

Almost surely, 2^12115105351 is an apocalyptic number.

12115105351 is a deficient number, since it is larger than the sum of its proper divisors (19636121).

12115105351 is an equidigital number, since it uses as much as digits as its factorization.

12115105351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19636120.

The product of its (nonzero) digits is 750, while the sum is 25.

Adding to 12115105351 its reverse (15350151121), we get a palindrome (27465256472).

The spelling of 12115105351 in words is "twelve billion, one hundred fifteen million, one hundred five thousand, three hundred fifty-one".