111232101232157 has 2 divisors, whose sum is σ = 111232101232158. Its totient is φ = 111232101232156.

The previous prime is 111232101232081. The next prime is 111232101232183. The reversal of 111232101232157 is 751232101232111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80580442708921 + 30651658523236 = 8976661^2 + 5536394^2 .

It is a cyclic number.

It is not a de Polignac number, because 111232101232157 - 2²⁶ = 111232034123293 is a prime.

It is a super-2 number, since 2×111232101232157² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111232101232957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55616050616078 + 55616050616079.

It is an arithmetic number, because the mean of its divisors is an integer number (55616050616079).

Almost surely, 2^{111232101232157} is an apocalyptic number.

It is an amenable number.

111232101232157 is a deficient number, since it is larger than the sum of its proper divisors (1).

111232101232157 is an equidigital number, since it uses as much as digits as its factorization.

111232101232157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 32.

Adding to 111232101232157 its reverse (751232101232111), we get a palindrome (862464202464268).

The spelling of 111232101232157 in words is "one hundred eleven trillion, two hundred thirty-two billion, one hundred one million, two hundred thirty-two thousand, one hundred fifty-seven".