121220302311331 has 2 divisors, whose sum is σ = 121220302311332. Its totient is φ = 121220302311330.

The previous prime is 121220302311323. The next prime is 121220302311373. The reversal of 121220302311331 is 133113203022121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121220302311331 - 2³ = 121220302311323 is a prime.

It is a super-2 number, since 2×121220302311331² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121220302311296 and 121220302311305.

It is not a weakly prime, because it can be changed into another prime (121220302311301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610151155665 + 60610151155666.

It is an arithmetic number, because the mean of its divisors is an integer number (60610151155666).

Almost surely, 2^{121220302311331} is an apocalyptic number.

121220302311331 is a deficient number, since it is larger than the sum of its proper divisors (1).

121220302311331 is an equidigital number, since it uses as much as digits as its factorization.

121220302311331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 121220302311331 its reverse (133113203022121), we get a palindrome (254333505333452).

The spelling of 121220302311331 in words is "one hundred twenty-one trillion, two hundred twenty billion, three hundred two million, three hundred eleven thousand, three hundred thirty-one".