121327997 has 8 divisors (see below), whose sum is σ = 146817216. Its totient is φ = 97877952.

The previous prime is 121327991. The next prime is 121328003. The reversal of 121327997 is 799723121.

It is an interprime number because it is at equal distance from previous prime (121327991) and next prime (121328003).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121327997 - 2⁴ = 121327981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121327991) 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 7 ways as a sum of consecutive naturals, for example, 509663 + ... + 509900.

It is an arithmetic number, because the mean of its divisors is an integer number (18352152).

Almost surely, 2^121327997 is an apocalyptic number.

121327997 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

121327997 is a deficient number, since it is larger than the sum of its proper divisors (25489219).

121327997 is a wasteful number, since it uses less digits than its factorization.

121327997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019587.

The product of its digits is 47628, while the sum is 41.

The square root of 121327997 is about 11014.8988647195. The cubic root of 121327997 is about 495.0552562198.

The spelling of 121327997 in words is "one hundred twenty-one million, three hundred twenty-seven thousand, nine hundred ninety-seven".