121312322223 has 8 divisors (see below), whose sum is σ = 161759820288. Its totient is φ = 80869852824.

The previous prime is 121312322179. The next prime is 121312322249. The reversal of 121312322223 is 322223213121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121312322223 - 2⁸ = 121312321967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121312322193 and 121312322202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121312322023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1200511 + ... + 1297632.

It is an arithmetic number, because the mean of its divisors is an integer number (20219977536).

Almost surely, 2^121312322223 is an apocalyptic number.

121312322223 is a deficient number, since it is larger than the sum of its proper divisors (40447498065).

121312322223 is a wasteful number, since it uses less digits than its factorization.

121312322223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514333.

The product of its digits is 1728, while the sum is 24.

Adding to 121312322223 its reverse (322223213121), we get a palindrome (443535535344).

The spelling of 121312322223 in words is "one hundred twenty-one billion, three hundred twelve million, three hundred twenty-two thousand, two hundred twenty-three".