121152443 has 4 divisors (see below), whose sum is σ = 121295328. Its totient is φ = 121009560.

The previous prime is 121152403. The next prime is 121152461. The reversal of 121152443 is 344251121.

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 121152443 - 2²² = 116958139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121152403) 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, 70163 + ... + 71868.

It is an arithmetic number, because the mean of its divisors is an integer number (30323832).

Almost surely, 2^121152443 is an apocalyptic number.

121152443 is a deficient number, since it is larger than the sum of its proper divisors (142885).

121152443 is an equidigital number, since it uses as much as digits as its factorization.

121152443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142884.

The product of its digits is 960, while the sum is 23.

The square root of 121152443 is about 11006.9270461832. The cubic root of 121152443 is about 494.8163696655.

The spelling of 121152443 in words is "one hundred twenty-one million, one hundred fifty-two thousand, four hundred forty-three".