111156198508151 has 2 divisors, whose sum is σ = 111156198508152. Its totient is φ = 111156198508150.

The previous prime is 111156198508057. The next prime is 111156198508153. The reversal of 111156198508151 is 151805891651111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111156198508151 - 2¹⁰ = 111156198507127 is a prime.

Together with 111156198508153, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 111156198508093 and 111156198508102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111156198508153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55578099254075 + 55578099254076.

It is an arithmetic number, because the mean of its divisors is an integer number (55578099254076).

Almost surely, 2^{111156198508151} is an apocalyptic number.

111156198508151 is a deficient number, since it is larger than the sum of its proper divisors (1).

111156198508151 is an equidigital number, since it uses as much as digits as its factorization.

111156198508151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432000, while the sum is 53.

The spelling of 111156198508151 in words is "one hundred eleven trillion, one hundred fifty-six billion, one hundred ninety-eight million, five hundred eight thousand, one hundred fifty-one".