121000124135 has 16 divisors (see below), whose sum is σ = 158471132832. Its totient is φ = 87960662400.

The previous prime is 121000124107. The next prime is 121000124197. The reversal of 121000124135 is 531421000121.

It is not a de Polignac number, because 121000124135 - 2⁶ = 121000124071 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 15 ways as a sum of consecutive naturals, for example, 368696 + ... + 614765.

It is an arithmetic number, because the mean of its divisors is an integer number (9904445802).

Almost surely, 2^121000124135 is an apocalyptic number.

121000124135 is a deficient number, since it is larger than the sum of its proper divisors (37471008697).

121000124135 is a wasteful number, since it uses less digits than its factorization.

121000124135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985714.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 121000124135 its reverse (531421000121), we get a palindrome (652421124256).

The spelling of 121000124135 in words is "one hundred twenty-one billion, one hundred twenty-four thousand, one hundred thirty-five".