110121110261 has 2 divisors, whose sum is σ = 110121110262. Its totient is φ = 110121110260.

The previous prime is 110121110237. The next prime is 110121110269. The reversal of 110121110261 is 162011121011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56320307761 + 53800802500 = 237319^2 + 231950^2 .

It is a cyclic number.

It is not a de Polignac number, because 110121110261 - 2¹⁰ = 110121109237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110121110269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55060555130 + 55060555131.

It is an arithmetic number, because the mean of its divisors is an integer number (55060555131).

Almost surely, 2^110121110261 is an apocalyptic number.

It is an amenable number.

110121110261 is a deficient number, since it is larger than the sum of its proper divisors (1).

110121110261 is an equidigital number, since it uses as much as digits as its factorization.

110121110261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 110121110261 its reverse (162011121011), we get a palindrome (272132231272).

The spelling of 110121110261 in words is "one hundred ten billion, one hundred twenty-one million, one hundred ten thousand, two hundred sixty-one".