121710071 has 24 divisors (see below), whose sum is σ = 148140720. Its totient is φ = 99574272.

The previous prime is 121710059. The next prime is 121710073. The reversal of 121710071 is 170017121.

It is not a de Polignac number, because 121710071 - 2¹⁰ = 121709047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121710073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137396 + ... + 138278.

It is an arithmetic number, because the mean of its divisors is an integer number (6172530).

Almost surely, 2^121710071 is an apocalyptic number.

121710071 is a deficient number, since it is larger than the sum of its proper divisors (26430649).

121710071 is an equidigital number, since it uses as much as digits as its factorization.

121710071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023 (or 1016 counting only the distinct ones).

The product of its (nonzero) digits is 98, while the sum is 20.

The square root of 121710071 is about 11032.2287412834. The cubic root of 121710071 is about 495.5743711943.

Adding to 121710071 its reverse (170017121), we get a palindrome (291727192).

The spelling of 121710071 in words is "one hundred twenty-one million, seven hundred ten thousand, seventy-one".