1055111410121 has 2 divisors, whose sum is σ = 1055111410122. Its totient is φ = 1055111410120.

The previous prime is 1055111410103. The next prime is 1055111410159. The reversal of 1055111410121 is 1210141115501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1046324410000 + 8787000121 = 1022900^2 + 93739^2 .

It is a cyclic number.

It is not a de Polignac number, because 1055111410121 - 2¹⁰ = 1055111409097 is a prime.

It is a super-2 number, since 2×1055111410121² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1055111460121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527555705060 + 527555705061.

It is an arithmetic number, because the mean of its divisors is an integer number (527555705061).

Almost surely, 2^{1055111410121} is an apocalyptic number.

It is an amenable number.

1055111410121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055111410121 is an equidigital number, since it uses as much as digits as its factorization.

1055111410121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 200, while the sum is 23.

Adding to 1055111410121 its reverse (1210141115501), we get a palindrome (2265252525622).

The spelling of 1055111410121 in words is "one trillion, fifty-five billion, one hundred eleven million, four hundred ten thousand, one hundred twenty-one".