311232111311223 has 10 divisors (see below), whose sum is σ = 464926981094664. Its totient is φ = 207488074207428.

The previous prime is 311232111311171. The next prime is 311232111311243. The reversal of 311232111311223 is 322113111232113.

311232111311223 is a `hidden beast` number, since 3 + 1 + 1 + 2 + 321 + 1 + 1 + 311 + 2 + 23 = 666.

It is not a de Polignac number, because 311232111311223 - 2¹⁶ = 311232111245687 is a prime.

It is a super-2 number, since 2×311232111311223² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311232111311243) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1921185872211 + ... + 1921185872372.

Almost surely, 2^{311232111311223} is an apocalyptic number.

311232111311223 is a deficient number, since it is larger than the sum of its proper divisors (153694869783441).

311232111311223 is an equidigital number, since it uses as much as digits as its factorization.

311232111311223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3842371744595 (or 3842371744586 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

Adding to 311232111311223 its reverse (322113111232113), we get a palindrome (633345222543336).

The spelling of 311232111311223 in words is "three hundred eleven trillion, two hundred thirty-two billion, one hundred eleven million, three hundred eleven thousand, two hundred twenty-three".