121132313223 has 4 divisors (see below), whose sum is σ = 161509750968. Its totient is φ = 80754875480.

The previous prime is 121132313219. The next prime is 121132313243. The reversal of 121132313223 is 322313231121.

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 121132313223 - 2² = 121132313219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121132313193 and 121132313202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121132313243) 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, 20188718868 + ... + 20188718873.

It is an arithmetic number, because the mean of its divisors is an integer number (40377437742).

Almost surely, 2^121132313223 is an apocalyptic number.

121132313223 is a deficient number, since it is larger than the sum of its proper divisors (40377437745).

121132313223 is an equidigital number, since it uses as much as digits as its factorization.

121132313223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40377437744.

The product of its digits is 1296, while the sum is 24.

Adding to 121132313223 its reverse (322313231121), we get a palindrome (443445544344).

The spelling of 121132313223 in words is "one hundred twenty-one billion, one hundred thirty-two million, three hundred thirteen thousand, two hundred twenty-three".