121723117 has 2 divisors, whose sum is σ = 121723118. Its totient is φ = 121723116.

The previous prime is 121723103. The next prime is 121723159. The reversal of 121723117 is 711327121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112656996 + 9066121 = 10614^2 + 3011^2 .

It is a cyclic number.

It is not a de Polignac number, because 121723117 - 2¹¹ = 121721069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121723091 and 121723100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121723187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60861558 + 60861559.

It is an arithmetic number, because the mean of its divisors is an integer number (60861559).

Almost surely, 2^121723117 is an apocalyptic number.

It is an amenable number.

121723117 is a deficient number, since it is larger than the sum of its proper divisors (1).

121723117 is an equidigital number, since it uses as much as digits as its factorization.

121723117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 588, while the sum is 25.

The square root of 121723117 is about 11032.8199930933. The cubic root of 121723117 is about 495.5920772948.

The spelling of 121723117 in words is "one hundred twenty-one million, seven hundred twenty-three thousand, one hundred seventeen".