23311211022 has 64 divisors (see below), whose sum is σ = 58969105920. Its totient is φ = 6756868800.

The previous prime is 23311211009. The next prime is 23311211029. The reversal of 23311211022 is 22011211332.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23311210986 and 23311211004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23311211029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 839479 + ... + 866802.

It is an arithmetic number, because the mean of its divisors is an integer number (921392280).

Almost surely, 2^23311211022 is an apocalyptic number.

23311211022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23311211022 is an abundant number, since it is smaller than the sum of its proper divisors (35657894898).

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

23311211022 is a wasteful number, since it uses less digits than its factorization.

23311211022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706326 (or 1706320 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 23311211022 its reverse (22011211332), we get a palindrome (45322422354).

The spelling of 23311211022 in words is "twenty-three billion, three hundred eleven million, two hundred eleven thousand, twenty-two".