121465344493 has 2 divisors, whose sum is σ = 121465344494. Its totient is φ = 121465344492.

The previous prime is 121465344491. The next prime is 121465344499. The reversal of 121465344493 is 394443564121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89959804489 + 31505540004 = 299933^2 + 177498^2 .

It is a cyclic number.

It is not a de Polignac number, because 121465344493 - 2¹ = 121465344491 is a prime.

Together with 121465344491, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121465344491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60732672246 + 60732672247.

It is an arithmetic number, because the mean of its divisors is an integer number (60732672247).

Almost surely, 2^121465344493 is an apocalyptic number.

It is an amenable number.

121465344493 is a deficient number, since it is larger than the sum of its proper divisors (1).

121465344493 is an equidigital number, since it uses as much as digits as its factorization.

121465344493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 46.

The spelling of 121465344493 in words is "one hundred twenty-one billion, four hundred sixty-five million, three hundred forty-four thousand, four hundred ninety-three".