121064910497 has 4 divisors (see below), whose sum is σ = 121692190020. Its totient is φ = 120437630976.

The previous prime is 121064910493. The next prime is 121064910511. The reversal of 121064910497 is 794019460121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 794019460121 = 61 ⋅13016712461.

It can be written as a sum of positive squares in 2 ways, for example, as 88084897681 + 32980012816 = 296791^2 + 181604^2 .

It is a cyclic number.

It is not a de Polignac number, because 121064910497 - 2² = 121064910493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121064910493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313639472 + ... + 313639857.

It is an arithmetic number, because the mean of its divisors is an integer number (30423047505).

Almost surely, 2^121064910497 is an apocalyptic number.

It is an amenable number.

121064910497 is a deficient number, since it is larger than the sum of its proper divisors (627279523).

121064910497 is an equidigital number, since it uses as much as digits as its factorization.

121064910497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627279522.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 121064910497 in words is "one hundred twenty-one billion, sixty-four million, nine hundred ten thousand, four hundred ninety-seven".