23311311042 has 16 divisors (see below), whose sum is σ = 47759759712. Its totient is φ = 7580914080.

The previous prime is 23311311041. The next prime is 23311311119. The reversal of 23311311042 is 24011311332.

It is a super-2 number, since 2×23311311042² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23311311041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47380468 + ... + 47380959.

It is an arithmetic number, because the mean of its divisors is an integer number (2984984982).

Almost surely, 2^23311311042 is an apocalyptic number.

23311311042 is an abundant number, since it is smaller than the sum of its proper divisors (24448448670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23311311042 is a wasteful number, since it uses less digits than its factorization.

23311311042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94761473.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 23311311042 its reverse (24011311332), we get a palindrome (47322622374).

The spelling of 23311311042 in words is "twenty-three billion, three hundred eleven million, three hundred eleven thousand, forty-two".