311221322201123 has 8 divisors (see below), whose sum is σ = 316332804089280. Its totient is φ = 306110146538880.

The previous prime is 311221322201107. The next prime is 311221322201147. The reversal of 311221322201123 is 321102223122113.

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 311221322201123 - 2⁴ = 311221322201107 is a prime.

It is a super-2 number, since 2×311221322201123² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311221322201092 and 311221322201101.

It is not an unprimeable number, because it can be changed into a prime (311221322201423) 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, 74506715 + ... + 78572852.

It is an arithmetic number, because the mean of its divisors is an integer number (39541600511160).

Almost surely, 2^{311221322201123} is an apocalyptic number.

311221322201123 is a deficient number, since it is larger than the sum of its proper divisors (5111481888157).

311221322201123 is a wasteful number, since it uses less digits than its factorization.

311221322201123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153112957.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 311221322201123 its reverse (321102223122113), we get a palindrome (632323545323236).

The spelling of 311221322201123 in words is "three hundred eleven trillion, two hundred twenty-one billion, three hundred twenty-two million, two hundred one thousand, one hundred twenty-three".