121662423 has 12 divisors (see below), whose sum is σ = 176752680. Its totient is φ = 80638416.

The previous prime is 121662407. The next prime is 121662503. The reversal of 121662423 is 324266121.

121662423 is a `hidden beast` number, since 1 + 2 + 16 + 624 + 23 = 666.

It is not a de Polignac number, because 121662423 - 2⁴ = 121662407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121662403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37513 + ... + 40626.

It is an arithmetic number, because the mean of its divisors is an integer number (14729390).

Almost surely, 2^121662423 is an apocalyptic number.

121662423 is a deficient number, since it is larger than the sum of its proper divisors (55090257).

121662423 is a wasteful number, since it uses less digits than its factorization.

121662423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78318 (or 78315 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 121662423 is about 11030.0690387685. The cubic root of 121662423 is about 495.5096923239.

The spelling of 121662423 in words is "one hundred twenty-one million, six hundred sixty-two thousand, four hundred twenty-three".