121023142441 has 2 divisors, whose sum is σ = 121023142442. Its totient is φ = 121023142440.

The previous prime is 121023142381. The next prime is 121023142451. The reversal of 121023142441 is 144241320121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120996144025 + 26998416 = 347845^2 + 5196^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121023142441 is a prime.

It is not a weakly prime, because it can be changed into another prime (121023142451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60511571220 + 60511571221.

It is an arithmetic number, because the mean of its divisors is an integer number (60511571221).

Almost surely, 2^121023142441 is an apocalyptic number.

It is an amenable number.

121023142441 is a deficient number, since it is larger than the sum of its proper divisors (1).

121023142441 is an equidigital number, since it uses as much as digits as its factorization.

121023142441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 121023142441 its reverse (144241320121), we get a palindrome (265264462562).

The spelling of 121023142441 in words is "one hundred twenty-one billion, twenty-three million, one hundred forty-two thousand, four hundred forty-one".