121233122311 has 8 divisors (see below), whose sum is σ = 143021563904. Its totient is φ = 100562036760.

The previous prime is 121233122287. The next prime is 121233122333. The reversal of 121233122311 is 113221332121.

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 121233122311 - 2⁵ = 121233122279 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 (121233122111) 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, 279338775 + ... + 279339208.

It is an arithmetic number, because the mean of its divisors is an integer number (17877695488).

Almost surely, 2^121233122311 is an apocalyptic number.

121233122311 is a deficient number, since it is larger than the sum of its proper divisors (21788441593).

121233122311 is an equidigital number, since it uses as much as digits as its factorization.

121233122311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558678021.

The product of its digits is 432, while the sum is 22.

Adding to 121233122311 its reverse (113221332121), we get a palindrome (234454454432).

The spelling of 121233122311 in words is "one hundred twenty-one billion, two hundred thirty-three million, one hundred twenty-two thousand, three hundred eleven".