121054302251 has 2 divisors, whose sum is σ = 121054302252. Its totient is φ = 121054302250.

The previous prime is 121054302247. The next prime is 121054302289. The reversal of 121054302251 is 152203450121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121054302251 - 2² = 121054302247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121054302251.

It is not a weakly prime, because it can be changed into another prime (121054308251) 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, 60527151125 + 60527151126.

It is an arithmetic number, because the mean of its divisors is an integer number (60527151126).

Almost surely, 2^121054302251 is an apocalyptic number.

121054302251 is a deficient number, since it is larger than the sum of its proper divisors (1).

121054302251 is an equidigital number, since it uses as much as digits as its factorization.

121054302251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 121054302251 its reverse (152203450121), we get a palindrome (273257752372).

The spelling of 121054302251 in words is "one hundred twenty-one billion, fifty-four million, three hundred two thousand, two hundred fifty-one".