121230542593 has 2 divisors, whose sum is σ = 121230542594. Its totient is φ = 121230542592.

The previous prime is 121230542557. The next prime is 121230542597. The reversal of 121230542593 is 395245032121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103447786689 + 17782755904 = 321633^2 + 133352^2 .

It is a cyclic number.

It is not a de Polignac number, because 121230542593 - 2²⁵ = 121196988161 is a prime.

It is not a weakly prime, because it can be changed into another prime (121230542597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60615271296 + 60615271297.

It is an arithmetic number, because the mean of its divisors is an integer number (60615271297).

Almost surely, 2^121230542593 is an apocalyptic number.

It is an amenable number.

121230542593 is a deficient number, since it is larger than the sum of its proper divisors (1).

121230542593 is an equidigital number, since it uses as much as digits as its factorization.

121230542593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 121230542593 in words is "one hundred twenty-one billion, two hundred thirty million, five hundred forty-two thousand, five hundred ninety-three".