111311241103961 has 2 divisors, whose sum is σ = 111311241103962. Its totient is φ = 111311241103960.

The previous prime is 111311241103949. The next prime is 111311241103987. The reversal of 111311241103961 is 169301142113111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71227590846736 + 40083650257225 = 8439644^2 + 6331165^2 .

It is a cyclic number.

It is not a de Polignac number, because 111311241103961 - 2³⁸ = 111036363197017 is a prime.

It is a super-2 number, since 2×111311241103961² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111311241103561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55655620551980 + 55655620551981.

It is an arithmetic number, because the mean of its divisors is an integer number (55655620551981).

Almost surely, 2^{111311241103961} is an apocalyptic number.

It is an amenable number.

111311241103961 is a deficient number, since it is larger than the sum of its proper divisors (1).

111311241103961 is an equidigital number, since it uses as much as digits as its factorization.

111311241103961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 35.

The spelling of 111311241103961 in words is "one hundred eleven trillion, three hundred eleven billion, two hundred forty-one million, one hundred three thousand, nine hundred sixty-one".