121054321181 has 2 divisors, whose sum is σ = 121054321182. Its totient is φ = 121054321180.

The previous prime is 121054321093. The next prime is 121054321243. The reversal of 121054321181 is 181123450121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83136495556 + 37917825625 = 288334^2 + 194725^2 .

It is a cyclic number.

It is not a de Polignac number, because 121054321181 - 2¹⁴ = 121054304797 is a prime.

It is a super-2 number, since 2×121054321181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121054327181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60527160590 + 60527160591.

It is an arithmetic number, because the mean of its divisors is an integer number (60527160591).

Almost surely, 2^121054321181 is an apocalyptic number.

It is an amenable number.

121054321181 is a deficient number, since it is larger than the sum of its proper divisors (1).

121054321181 is an equidigital number, since it uses as much as digits as its factorization.

121054321181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 29.

The spelling of 121054321181 in words is "one hundred twenty-one billion, fifty-four million, three hundred twenty-one thousand, one hundred eighty-one".