12320111051 has 2 divisors, whose sum is σ = 12320111052. Its totient is φ = 12320111050.

The previous prime is 12320110991. The next prime is 12320111057. The reversal of 12320111051 is 15011102321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12320111051 is a prime.

It is not a weakly prime, because it can be changed into another prime (12320111057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160055525 + 6160055526.

It is an arithmetic number, because the mean of its divisors is an integer number (6160055526).

Almost surely, 2^12320111051 is an apocalyptic number.

12320111051 is a deficient number, since it is larger than the sum of its proper divisors (1).

12320111051 is an equidigital number, since it uses as much as digits as its factorization.

12320111051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 17.

Adding to 12320111051 its reverse (15011102321), we get a palindrome (27331213372).

The spelling of 12320111051 in words is "twelve billion, three hundred twenty million, one hundred eleven thousand, fifty-one".