121527615193 has 2 divisors, whose sum is σ = 121527615194. Its totient is φ = 121527615192.

The previous prime is 121527615161. The next prime is 121527615229. The reversal of 121527615193 is 391516725121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121140194704 + 387420489 = 348052^2 + 19683^2 .

It is a cyclic number.

It is not a de Polignac number, because 121527615193 - 2⁵ = 121527615161 is a prime.

It is a super-2 number, since 2×121527615193² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121527615103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60763807596 + 60763807597.

It is an arithmetic number, because the mean of its divisors is an integer number (60763807597).

Almost surely, 2^121527615193 is an apocalyptic number.

It is an amenable number.

121527615193 is a deficient number, since it is larger than the sum of its proper divisors (1).

121527615193 is an equidigital number, since it uses as much as digits as its factorization.

121527615193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 43.

The spelling of 121527615193 in words is "one hundred twenty-one billion, five hundred twenty-seven million, six hundred fifteen thousand, one hundred ninety-three".