121242230441 has 2 divisors, whose sum is σ = 121242230442. Its totient is φ = 121242230440.

The previous prime is 121242230407. The next prime is 121242230573. The reversal of 121242230441 is 144032242121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87025000000 + 34217230441 = 295000^2 + 184979^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121242230441 is a prime.

It is a super-3 number, since 3×121242230441³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121242230441.

It is not a weakly prime, because it can be changed into another prime (121242230401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60621115220 + 60621115221.

It is an arithmetic number, because the mean of its divisors is an integer number (60621115221).

Almost surely, 2^121242230441 is an apocalyptic number.

It is an amenable number.

121242230441 is a deficient number, since it is larger than the sum of its proper divisors (1).

121242230441 is an equidigital number, since it uses as much as digits as its factorization.

121242230441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 121242230441 its reverse (144032242121), we get a palindrome (265274472562).

The spelling of 121242230441 in words is "one hundred twenty-one billion, two hundred forty-two million, two hundred thirty thousand, four hundred forty-one".