111056271409 has 2 divisors, whose sum is σ = 111056271410. Its totient is φ = 111056271408.

The previous prime is 111056271383. The next prime is 111056271419. The reversal of 111056271409 is 904172650111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72884880784 + 38171390625 = 269972^2 + 195375^2 .

It is a cyclic number.

It is not a de Polignac number, because 111056271409 - 2¹³ = 111056263217 is a prime.

It is not a weakly prime, because it can be changed into another prime (111056271419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55528135704 + 55528135705.

It is an arithmetic number, because the mean of its divisors is an integer number (55528135705).

Almost surely, 2^111056271409 is an apocalyptic number.

It is an amenable number.

111056271409 is a deficient number, since it is larger than the sum of its proper divisors (1).

111056271409 is an equidigital number, since it uses as much as digits as its factorization.

111056271409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 37.

The spelling of 111056271409 in words is "one hundred eleven billion, fifty-six million, two hundred seventy-one thousand, four hundred nine".