12111111010151 has 2 divisors, whose sum is σ = 12111111010152. Its totient is φ = 12111111010150.

The previous prime is 12111111010123. The next prime is 12111111010177. The reversal of 12111111010151 is 15101011111121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12111111010151 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12111141010151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055555505075 + 6055555505076.

It is an arithmetic number, because the mean of its divisors is an integer number (6055555505076).

Almost surely, 2^{12111111010151} is an apocalyptic number.

12111111010151 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111111010151 is an equidigital number, since it uses as much as digits as its factorization.

12111111010151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10, while the sum is 17.

Adding to 12111111010151 its reverse (15101011111121), we get a palindrome (27212122121272).

The spelling of 12111111010151 in words is "twelve trillion, one hundred eleven billion, one hundred eleven million, ten thousand, one hundred fifty-one".