121560323 has 4 divisors (see below), whose sum is σ = 123853968. Its totient is φ = 119266680.

The previous prime is 121560317. The next prime is 121560337. The reversal of 121560323 is 323065121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323065121 = 3989 ⋅80989.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121560323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121560823) 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, 1146743 + ... + 1146848.

It is an arithmetic number, because the mean of its divisors is an integer number (30963492).

Almost surely, 2^121560323 is an apocalyptic number.

121560323 is a deficient number, since it is larger than the sum of its proper divisors (2293645).

121560323 is an equidigital number, since it uses as much as digits as its factorization.

121560323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293644.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 121560323 is about 11025.4398098216. The cubic root of 121560323 is about 495.3710417387.

The spelling of 121560323 in words is "one hundred twenty-one million, five hundred sixty thousand, three hundred twenty-three".