121752103243 has 4 divisors (see below), whose sum is σ = 121786903000. Its totient is φ = 121717303488.

The previous prime is 121752103241. The next prime is 121752103267. The reversal of 121752103243 is 342301257121.

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 121752103243 - 2¹ = 121752103241 is a prime.

It is a super-2 number, since 2×121752103243² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121752103241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17394630 + ... + 17401627.

It is an arithmetic number, because the mean of its divisors is an integer number (30446725750).

Almost surely, 2^121752103243 is an apocalyptic number.

121752103243 is a deficient number, since it is larger than the sum of its proper divisors (34799757).

121752103243 is an equidigital number, since it uses as much as digits as its factorization.

121752103243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34799756.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 121752103243 in words is "one hundred twenty-one billion, seven hundred fifty-two million, one hundred three thousand, two hundred forty-three".