121516120283 has 2 divisors, whose sum is σ = 121516120284. Its totient is φ = 121516120282.

The previous prime is 121516120267. The next prime is 121516120289. The reversal of 121516120283 is 382021615121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121516120283 - 2⁴ = 121516120267 is a prime.

It is not a weakly prime, because it can be changed into another prime (121516120289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60758060141 + 60758060142.

It is an arithmetic number, because the mean of its divisors is an integer number (60758060142).

Almost surely, 2^121516120283 is an apocalyptic number.

121516120283 is a deficient number, since it is larger than the sum of its proper divisors (1).

121516120283 is an equidigital number, since it uses as much as digits as its factorization.

121516120283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 32.

The spelling of 121516120283 in words is "one hundred twenty-one billion, five hundred sixteen million, one hundred twenty thousand, two hundred eighty-three".