121320311332331 has 2 divisors, whose sum is σ = 121320311332332. Its totient is φ = 121320311332330.

The previous prime is 121320311332327. The next prime is 121320311332421. The reversal of 121320311332331 is 133233113023121.

It is a weak prime.

It is an emirp because it is prime and its reverse (133233113023121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121320311332331 - 2² = 121320311332327 is a prime.

It is a super-2 number, since 2×121320311332331² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121320311332294 and 121320311332303.

It is not a weakly prime, because it can be changed into another prime (121320311332321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60660155666165 + 60660155666166.

It is an arithmetic number, because the mean of its divisors is an integer number (60660155666166).

Almost surely, 2^{121320311332331} is an apocalyptic number.

121320311332331 is a deficient number, since it is larger than the sum of its proper divisors (1).

121320311332331 is an equidigital number, since it uses as much as digits as its factorization.

121320311332331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 121320311332331 its reverse (133233113023121), we get a palindrome (254553424355452).

The spelling of 121320311332331 in words is "one hundred twenty-one trillion, three hundred twenty billion, three hundred eleven million, three hundred thirty-two thousand, three hundred thirty-one".