121172050735 has 4 divisors (see below), whose sum is σ = 145406460888. Its totient is φ = 96937640584.

The previous prime is 121172050723. The next prime is 121172050763. The reversal of 121172050735 is 537050271121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121172050735 - 2⁷ = 121172050607 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 121172050735.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12117205069 + ... + 12117205078.

It is an arithmetic number, because the mean of its divisors is an integer number (36351615222).

Almost surely, 2^121172050735 is an apocalyptic number.

121172050735 is a deficient number, since it is larger than the sum of its proper divisors (24234410153).

121172050735 is an equidigital number, since it uses as much as digits as its factorization.

121172050735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24234410152.

The product of its (nonzero) digits is 14700, while the sum is 34.

The spelling of 121172050735 in words is "one hundred twenty-one billion, one hundred seventy-two million, fifty thousand, seven hundred thirty-five".