121308018775 has 12 divisors (see below), whose sum is σ = 151046108224. Its totient is φ = 96643728000.

The previous prime is 121308018757. The next prime is 121308018809. The reversal of 121308018775 is 577810803121.

It is not a de Polignac number, because 121308018775 - 2⁷ = 121308018647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10061031 + ... + 10073080.

Almost surely, 2^121308018775 is an apocalyptic number.

121308018775 is a deficient number, since it is larger than the sum of its proper divisors (29738089449).

121308018775 is a wasteful number, since it uses less digits than its factorization.

121308018775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20134362 (or 20134357 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 43.

The spelling of 121308018775 in words is "one hundred twenty-one billion, three hundred eight million, eighteen thousand, seven hundred seventy-five".