121135475023 has 8 divisors (see below), whose sum is σ = 127573603200. Its totient is φ = 114703604568.

The previous prime is 121135475003. The next prime is 121135475029. The reversal of 121135475023 is 320574531121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121135475023 - 2¹⁷ = 121135343951 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121135475023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121135475029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1524661 + ... + 1602142.

It is an arithmetic number, because the mean of its divisors is an integer number (15946700400).

Almost surely, 2^121135475023 is an apocalyptic number.

121135475023 is a deficient number, since it is larger than the sum of its proper divisors (6438128177).

121135475023 is a wasteful number, since it uses less digits than its factorization.

121135475023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3128861.

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 121135475023 in words is "one hundred twenty-one billion, one hundred thirty-five million, four hundred seventy-five thousand, twenty-three".