121350086513 has 2 divisors, whose sum is σ = 121350086514. Its totient is φ = 121350086512.

The previous prime is 121350086509. The next prime is 121350086573. The reversal of 121350086513 is 315680053121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106443630049 + 14906456464 = 326257^2 + 122092^2 .

It is a cyclic number.

It is not a de Polignac number, because 121350086513 - 2² = 121350086509 is a prime.

It is not a weakly prime, because it can be changed into another prime (121350086573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60675043256 + 60675043257.

It is an arithmetic number, because the mean of its divisors is an integer number (60675043257).

Almost surely, 2^121350086513 is an apocalyptic number.

It is an amenable number.

121350086513 is a deficient number, since it is larger than the sum of its proper divisors (1).

121350086513 is an equidigital number, since it uses as much as digits as its factorization.

121350086513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 121350086513 in words is "one hundred twenty-one billion, three hundred fifty million, eighty-six thousand, five hundred thirteen".