121011133223 has 8 divisors (see below), whose sum is σ = 121320376992. Its totient is φ = 120702267936.

The previous prime is 121011133189. The next prime is 121011133249. The reversal of 121011133223 is 322331110121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 121011133223 - 2⁸ = 121011132967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121011133195 and 121011133204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121011133123) 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, 551261 + ... + 738857.

It is an arithmetic number, because the mean of its divisors is an integer number (15165047124).

Almost surely, 2^121011133223 is an apocalyptic number.

121011133223 is a deficient number, since it is larger than the sum of its proper divisors (309243769).

121011133223 is an equidigital number, since it uses as much as digits as its factorization.

121011133223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189241.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121011133223 its reverse (322331110121), we get a palindrome (443342243344).

The spelling of 121011133223 in words is "one hundred twenty-one billion, eleven million, one hundred thirty-three thousand, two hundred twenty-three".