121122102023257 has 2 divisors, whose sum is σ = 121122102023258. Its totient is φ = 121122102023256.

The previous prime is 121122102023177. The next prime is 121122102023269. The reversal of 121122102023257 is 752320201221121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95223560161536 + 25898541861721 = 9758256^2 + 5089061^2 .

It is a cyclic number.

It is not a de Polignac number, because 121122102023257 - 2²³ = 121122093634649 is a prime.

It is not a weakly prime, because it can be changed into another prime (121122102023057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60561051011628 + 60561051011629.

It is an arithmetic number, because the mean of its divisors is an integer number (60561051011629).

Almost surely, 2^{121122102023257} is an apocalyptic number.

It is an amenable number.

121122102023257 is a deficient number, since it is larger than the sum of its proper divisors (1).

121122102023257 is an equidigital number, since it uses as much as digits as its factorization.

121122102023257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 31.

Adding to 121122102023257 its reverse (752320201221121), we get a palindrome (873442303244378).

The spelling of 121122102023257 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, one hundred two million, twenty-three thousand, two hundred fifty-seven".