121123132331 has 2 divisors, whose sum is σ = 121123132332. Its totient is φ = 121123132330.

The previous prime is 121123132321. The next prime is 121123132369. The reversal of 121123132331 is 133231321121.

It is a weak prime.

It is an emirp because it is prime and its reverse (133231321121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121123132331 - 2¹⁰ = 121123131307 is a prime.

It is a super-2 number, since 2×121123132331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121123132297 and 121123132306.

It is not a weakly prime, because it can be changed into another prime (121123132321) 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, 60561566165 + 60561566166.

It is an arithmetic number, because the mean of its divisors is an integer number (60561566166).

Almost surely, 2^121123132331 is an apocalyptic number.

121123132331 is a deficient number, since it is larger than the sum of its proper divisors (1).

121123132331 is an equidigital number, since it uses as much as digits as its factorization.

121123132331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 23.

Adding to 121123132331 its reverse (133231321121), we get a palindrome (254354453452).

The spelling of 121123132331 in words is "one hundred twenty-one billion, one hundred twenty-three million, one hundred thirty-two thousand, three hundred thirty-one".