121517149967 has 2 divisors, whose sum is σ = 121517149968. Its totient is φ = 121517149966.

The previous prime is 121517149939. The next prime is 121517150003. The reversal of 121517149967 is 769941715121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121517149967 - 2¹⁴ = 121517133583 is a prime.

It is a super-2 number, since 2×121517149967² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121517149927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60758574983 + 60758574984.

It is an arithmetic number, because the mean of its divisors is an integer number (60758574984).

Almost surely, 2^121517149967 is an apocalyptic number.

121517149967 is a deficient number, since it is larger than the sum of its proper divisors (1).

121517149967 is an equidigital number, since it uses as much as digits as its factorization.

121517149967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 53.

The spelling of 121517149967 in words is "one hundred twenty-one billion, five hundred seventeen million, one hundred forty-nine thousand, nine hundred sixty-seven".