13111111123151 has 2 divisors, whose sum is σ = 13111111123152. Its totient is φ = 13111111123150.

The previous prime is 13111111123081. The next prime is 13111111123163. The reversal of 13111111123151 is 15132111111131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13111111123151 - 2¹⁸ = 13111110861007 is a prime.

It is a super-2 number, since 2×13111111123151² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13111111623151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6555555561575 + 6555555561576.

It is an arithmetic number, because the mean of its divisors is an integer number (6555555561576).

Almost surely, 2^{13111111123151} is an apocalyptic number.

13111111123151 is a deficient number, since it is larger than the sum of its proper divisors (1).

13111111123151 is an equidigital number, since it uses as much as digits as its factorization.

13111111123151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90, while the sum is 23.

Adding to 13111111123151 its reverse (15132111111131), we get a palindrome (28243222234282).

The spelling of 13111111123151 in words is "thirteen trillion, one hundred eleven billion, one hundred eleven million, one hundred twenty-three thousand, one hundred fifty-one".