121186660461593 has 2 divisors, whose sum is σ = 121186660461594. Its totient is φ = 121186660461592.

The previous prime is 121186660461589. The next prime is 121186660461611. The reversal of 121186660461593 is 395164066681121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113181682361344 + 8004978100249 = 10638688^2 + 2829307^2 .

It is a cyclic number.

It is not a de Polignac number, because 121186660461593 - 2² = 121186660461589 is a prime.

It is a super-2 number, since 2×121186660461593² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121186660461563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60593330230796 + 60593330230797.

It is an arithmetic number, because the mean of its divisors is an integer number (60593330230797).

Almost surely, 2^{121186660461593} is an apocalyptic number.

It is an amenable number.

121186660461593 is a deficient number, since it is larger than the sum of its proper divisors (1).

121186660461593 is an equidigital number, since it uses as much as digits as its factorization.

121186660461593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11197440, while the sum is 59.

The spelling of 121186660461593 in words is "one hundred twenty-one trillion, one hundred eighty-six billion, six hundred sixty million, four hundred sixty-one thousand, five hundred ninety-three".