121320432223 has 4 divisors (see below), whose sum is σ = 126595233648. Its totient is φ = 116045630800.

The previous prime is 121320432209. The next prime is 121320432251. The reversal of 121320432223 is 322234023121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322234023121 = 19739 ⋅16324739.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121320432223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121320430223) 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, 2637400678 + ... + 2637400723.

It is an arithmetic number, because the mean of its divisors is an integer number (31648808412).

Almost surely, 2^121320432223 is an apocalyptic number.

121320432223 is a deficient number, since it is larger than the sum of its proper divisors (5274801425).

121320432223 is an equidigital number, since it uses as much as digits as its factorization.

121320432223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5274801424.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 121320432223 its reverse (322234023121), we get a palindrome (443554455344).

The spelling of 121320432223 in words is "one hundred twenty-one billion, three hundred twenty million, four hundred thirty-two thousand, two hundred twenty-three".