121340112997 has 2 divisors, whose sum is σ = 121340112998. Its totient is φ = 121340112996.

The previous prime is 121340112989. The next prime is 121340113049. The reversal of 121340112997 is 799211043121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110002335556 + 11337777441 = 331666^2 + 106479^2 .

It is a cyclic number.

It is not a de Polignac number, because 121340112997 - 2³ = 121340112989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121340112937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60670056498 + 60670056499.

It is an arithmetic number, because the mean of its divisors is an integer number (60670056499).

Almost surely, 2^121340112997 is an apocalyptic number.

It is an amenable number.

121340112997 is a deficient number, since it is larger than the sum of its proper divisors (1).

121340112997 is an equidigital number, since it uses as much as digits as its factorization.

121340112997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 40.

The spelling of 121340112997 in words is "one hundred twenty-one billion, three hundred forty million, one hundred twelve thousand, nine hundred ninety-seven".