121311133020073 has 2 divisors, whose sum is σ = 121311133020074. Its totient is φ = 121311133020072.

The previous prime is 121311133020037. The next prime is 121311133020149. The reversal of 121311133020073 is 370020331113121.

Together with previous prime (121311133020037) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119003051957904 + 2308081062169 = 10908852^2 + 1519237^2 .

It is a cyclic number.

It is not a de Polignac number, because 121311133020073 - 2²⁹ = 121310596149161 is a prime.

It is a super-2 number, since 2×121311133020073² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121311133020023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60655566510036 + 60655566510037.

It is an arithmetic number, because the mean of its divisors is an integer number (60655566510037).

Almost surely, 2^{121311133020073} is an apocalyptic number.

It is an amenable number.

121311133020073 is a deficient number, since it is larger than the sum of its proper divisors (1).

121311133020073 is an equidigital number, since it uses as much as digits as its factorization.

121311133020073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

Adding to 121311133020073 its reverse (370020331113121), we get a palindrome (491331464133194).

The spelling of 121311133020073 in words is "one hundred twenty-one trillion, three hundred eleven billion, one hundred thirty-three million, twenty thousand, seventy-three".