111111231000377 has 2 divisors, whose sum is σ = 111111231000378. Its totient is φ = 111111231000376.

The previous prime is 111111231000281. The next prime is 111111231000389. The reversal of 111111231000377 is 773000132111111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90577019702416 + 20534211297961 = 9517196^2 + 4531469^2 .

It is a cyclic number.

It is not a de Polignac number, because 111111231000377 - 2⁴⁴ = 93519044955961 is a prime.

It is not a weakly prime, because it can be changed into another prime (111111231000677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555615500188 + 55555615500189.

It is an arithmetic number, because the mean of its divisors is an integer number (55555615500189).

Almost surely, 2^{111111231000377} is an apocalyptic number.

It is an amenable number.

111111231000377 is a deficient number, since it is larger than the sum of its proper divisors (1).

111111231000377 is an equidigital number, since it uses as much as digits as its factorization.

111111231000377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882, while the sum is 29.

Adding to 111111231000377 its reverse (773000132111111), we get a palindrome (884111363111488).

The spelling of 111111231000377 in words is "one hundred eleven trillion, one hundred eleven billion, two hundred thirty-one million, three hundred seventy-seven", and thus it is an aban number.