12351442351 has 4 divisors (see below), whose sum is σ = 12356654104. Its totient is φ = 12346230600.

The previous prime is 12351442333. The next prime is 12351442357. The reversal of 12351442351 is 15324415321.

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 12351442351 - 2⁵ = 12351442319 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 (12351442357) 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, 2602320 + ... + 2607061.

It is an arithmetic number, because the mean of its divisors is an integer number (3089163526).

Almost surely, 2^12351442351 is an apocalyptic number.

12351442351 is a deficient number, since it is larger than the sum of its proper divisors (5211753).

12351442351 is an equidigital number, since it uses as much as digits as its factorization.

12351442351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5211752.

The product of its digits is 14400, while the sum is 31.

Adding to 12351442351 its reverse (15324415321), we get a palindrome (27675857672).

The spelling of 12351442351 in words is "twelve billion, three hundred fifty-one million, four hundred forty-two thousand, three hundred fifty-one".