121716316 has 12 divisors (see below), whose sum is σ = 217957432. Its totient is φ = 59442768.

The previous prime is 121716281. The next prime is 121716341. The reversal of 121716316 is 613617121.

It is a super-2 number, since 2×121716316² = 29629723161223712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353655 + ... + 353998.

Almost surely, 2^121716316 is an apocalyptic number.

It is an amenable number.

121716316 is a deficient number, since it is larger than the sum of its proper divisors (96241116).

121716316 is a wasteful number, since it uses less digits than its factorization.

121716316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707700 (or 707698 counting only the distinct ones).

The product of its digits is 1512, while the sum is 28.

The square root of 121716316 is about 11032.5117720309. The cubic root of 121716316 is about 495.5828470993.

The spelling of 121716316 in words is "one hundred twenty-one million, seven hundred sixteen thousand, three hundred sixteen".