121421014023241 has 2 divisors, whose sum is σ = 121421014023242. Its totient is φ = 121421014023240.

The previous prime is 121421014023139. The next prime is 121421014023289. The reversal of 121421014023241 is 142320410124121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94102202995641 + 27318811027600 = 9700629^2 + 5226740^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121421014023241 is a prime.

It is not a weakly prime, because it can be changed into another prime (121421014023541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60710507011620 + 60710507011621.

It is an arithmetic number, because the mean of its divisors is an integer number (60710507011621).

Almost surely, 2^{121421014023241} is an apocalyptic number.

It is an amenable number.

121421014023241 is a deficient number, since it is larger than the sum of its proper divisors (1).

121421014023241 is an equidigital number, since it uses as much as digits as its factorization.

121421014023241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 121421014023241 its reverse (142320410124121), we get a palindrome (263741424147362).

The spelling of 121421014023241 in words is "one hundred twenty-one trillion, four hundred twenty-one billion, fourteen million, twenty-three thousand, two hundred forty-one".