121735025385 has 32 divisors (see below), whose sum is σ = 198112037760. Its totient is φ = 63813734400.

The previous prime is 121735025309. The next prime is 121735025443. The reversal of 121735025385 is 583520537121.

It is not a de Polignac number, because 121735025385 - 2³² = 117440058089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8206275 + ... + 8221095.

It is an arithmetic number, because the mean of its divisors is an integer number (6191001180).

Almost surely, 2^121735025385 is an apocalyptic number.

121735025385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121735025385 is a deficient number, since it is larger than the sum of its proper divisors (76377012375).

121735025385 is a wasteful number, since it uses less digits than its factorization.

121735025385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24169.

The product of its (nonzero) digits is 252000, while the sum is 42.

The spelling of 121735025385 in words is "one hundred twenty-one billion, seven hundred thirty-five million, twenty-five thousand, three hundred eighty-five".