121254202542331 has 2 divisors, whose sum is σ = 121254202542332. Its totient is φ = 121254202542330.

The previous prime is 121254202542313. The next prime is 121254202542443. The reversal of 121254202542331 is 133245202452121.

Together with previous prime (121254202542313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121254202542331 - 2⁹ = 121254202541819 is a prime.

It is a super-2 number, since 2×121254202542331² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121254202548331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60627101271165 + 60627101271166.

It is an arithmetic number, because the mean of its divisors is an integer number (60627101271166).

Almost surely, 2^{121254202542331} is an apocalyptic number.

121254202542331 is a deficient number, since it is larger than the sum of its proper divisors (1).

121254202542331 is an equidigital number, since it uses as much as digits as its factorization.

121254202542331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 121254202542331 its reverse (133245202452121), we get a palindrome (254499404994452).

The spelling of 121254202542331 in words is "one hundred twenty-one trillion, two hundred fifty-four billion, two hundred two million, five hundred forty-two thousand, three hundred thirty-one".