121232199973 has 2 divisors, whose sum is σ = 121232199974. Its totient is φ = 121232199972.

The previous prime is 121232199931. The next prime is 121232199983. The reversal of 121232199973 is 379991232121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105265855809 + 15966344164 = 324447^2 + 126358^2 .

It is a cyclic number.

It is not a de Polignac number, because 121232199973 - 2⁹ = 121232199461 is a prime.

It is a super-2 number, since 2×121232199973² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121232199983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60616099986 + 60616099987.

It is an arithmetic number, because the mean of its divisors is an integer number (60616099987).

Almost surely, 2^121232199973 is an apocalyptic number.

It is an amenable number.

121232199973 is a deficient number, since it is larger than the sum of its proper divisors (1).

121232199973 is an equidigital number, since it uses as much as digits as its factorization.

121232199973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 49.

The spelling of 121232199973 in words is "one hundred twenty-one billion, two hundred thirty-two million, one hundred ninety-nine thousand, nine hundred seventy-three".