121015290385 has 16 divisors (see below), whose sum is σ = 158430248640. Its totient is φ = 88005435840.

The previous prime is 121015290337. The next prime is 121015290413. The reversal of 121015290385 is 583092510121.

It is not a de Polignac number, because 121015290385 - 2²¹ = 121013193233 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 910351 + ... + 1034779.

It is an arithmetic number, because the mean of its divisors is an integer number (9901890540).

Almost surely, 2^121015290385 is an apocalyptic number.

It is an amenable number.

121015290385 is a deficient number, since it is larger than the sum of its proper divisors (37414958255).

121015290385 is a wasteful number, since it uses less digits than its factorization.

121015290385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142128.

The product of its (nonzero) digits is 21600, while the sum is 37.

The spelling of 121015290385 in words is "one hundred twenty-one billion, fifteen million, two hundred ninety thousand, three hundred eighty-five".