121253068931923 has 2 divisors, whose sum is σ = 121253068931924. Its totient is φ = 121253068931922.

The previous prime is 121253068931879. The next prime is 121253068931941. The reversal of 121253068931923 is 329139860352121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121253068931923 is a prime.

It is not a weakly prime, because it can be changed into another prime (121253068934923) 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, 60626534465961 + 60626534465962.

It is an arithmetic number, because the mean of its divisors is an integer number (60626534465962).

Almost surely, 2^{121253068931923} is an apocalyptic number.

121253068931923 is a deficient number, since it is larger than the sum of its proper divisors (1).

121253068931923 is an equidigital number, since it uses as much as digits as its factorization.

121253068931923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 121253068931923 in words is "one hundred twenty-one trillion, two hundred fifty-three billion, sixty-eight million, nine hundred thirty-one thousand, nine hundred twenty-three".