121341241523 has 2 divisors, whose sum is σ = 121341241524. Its totient is φ = 121341241522.

The previous prime is 121341241501. The next prime is 121341241559. The reversal of 121341241523 is 325142143121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121341241523 - 2⁶ = 121341241459 is a prime.

It is not a weakly prime, because it can be changed into another prime (121341241573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60670620761 + 60670620762.

It is an arithmetic number, because the mean of its divisors is an integer number (60670620762).

Almost surely, 2^121341241523 is an apocalyptic number.

121341241523 is a deficient number, since it is larger than the sum of its proper divisors (1).

121341241523 is an equidigital number, since it uses as much as digits as its factorization.

121341241523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 29.

Adding to 121341241523 its reverse (325142143121), we get a palindrome (446483384644).

The spelling of 121341241523 in words is "one hundred twenty-one billion, three hundred forty-one million, two hundred forty-one thousand, five hundred twenty-three".