121411535081 has 2 divisors, whose sum is σ = 121411535082. Its totient is φ = 121411535080.

The previous prime is 121411534997. The next prime is 121411535099. The reversal of 121411535081 is 180535114121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93125677225 + 28285857856 = 305165^2 + 168184^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121411535081 is a prime.

It is a super-2 number, since 2×121411535081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121411535881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60705767540 + 60705767541.

It is an arithmetic number, because the mean of its divisors is an integer number (60705767541).

Almost surely, 2^121411535081 is an apocalyptic number.

It is an amenable number.

121411535081 is a deficient number, since it is larger than the sum of its proper divisors (1).

121411535081 is an equidigital number, since it uses as much as digits as its factorization.

121411535081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 32.

The spelling of 121411535081 in words is "one hundred twenty-one billion, four hundred eleven million, five hundred thirty-five thousand, eighty-one".