112102111121261 has 2 divisors, whose sum is σ = 112102111121262. Its totient is φ = 112102111121260.

The previous prime is 112102111121219. The next prime is 112102111121281. The reversal of 112102111121261 is 162121111201211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103063489776361 + 9038621344900 = 10152019^2 + 3006430^2 .

It is a cyclic number.

It is not a de Polignac number, because 112102111121261 - 2³⁰ = 112101037379437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112102111121201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56051055560630 + 56051055560631.

It is an arithmetic number, because the mean of its divisors is an integer number (56051055560631).

Almost surely, 2^{112102111121261} is an apocalyptic number.

It is an amenable number.

112102111121261 is a deficient number, since it is larger than the sum of its proper divisors (1).

112102111121261 is an equidigital number, since it uses as much as digits as its factorization.

112102111121261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 23.

Adding to 112102111121261 its reverse (162121111201211), we get a palindrome (274223222322472).

The spelling of 112102111121261 in words is "one hundred twelve trillion, one hundred two billion, one hundred eleven million, one hundred twenty-one thousand, two hundred sixty-one".