423331231311 has 16 divisors (see below), whose sum is σ = 637438650720. Its totient is φ = 277594248960.

The previous prime is 423331231289. The next prime is 423331231331. The reversal of 423331231311 is 113132133324.

423331231311 is a `hidden beast` number, since 4 + 2 + 3 + 3 + 312 + 31 + 311 = 666.

It is not a de Polignac number, because 423331231311 - 2¹¹ = 423331229263 is a prime.

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 (423331231331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128514210 + ... + 128517503.

It is an arithmetic number, because the mean of its divisors is an integer number (39839915670).

Almost surely, 2^423331231311 is an apocalyptic number.

423331231311 is a deficient number, since it is larger than the sum of its proper divisors (214107419409).

423331231311 is a wasteful number, since it uses less digits than its factorization.

423331231311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257031783 (or 257031777 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

Adding to 423331231311 its reverse (113132133324), we get a palindrome (536463364635).

The spelling of 423331231311 in words is "four hundred twenty-three billion, three hundred thirty-one million, two hundred thirty-one thousand, three hundred eleven".