121444525151321 has 2 divisors, whose sum is σ = 121444525151322. Its totient is φ = 121444525151320.

The previous prime is 121444525151297. The next prime is 121444525151347. The reversal of 121444525151321 is 123151525444121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119373979705600 + 2070545445721 = 10925840^2 + 1438939^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121444525151321 is a prime.

It is not a weakly prime, because it can be changed into another prime (121444525151381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60722262575660 + 60722262575661.

It is an arithmetic number, because the mean of its divisors is an integer number (60722262575661).

Almost surely, 2^{121444525151321} is an apocalyptic number.

It is an amenable number.

121444525151321 is a deficient number, since it is larger than the sum of its proper divisors (1).

121444525151321 is an equidigital number, since it uses as much as digits as its factorization.

121444525151321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192000, while the sum is 41.

The spelling of 121444525151321 in words is "one hundred twenty-one trillion, four hundred forty-four billion, five hundred twenty-five million, one hundred fifty-one thousand, three hundred twenty-one".