11312023122 has 96 divisors (see below), whose sum is σ = 26616957120. Its totient is φ = 3460786560.

The previous prime is 11312023109. The next prime is 11312023157. The reversal of 11312023122 is 22132021311.

11312023122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11312023122² (a number of 21 digits) contains 22 as substring.

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 = 11312023095 and 11312023104.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1393708 + ... + 1401800.

It is an arithmetic number, because the mean of its divisors is an integer number (277259970).

Almost surely, 2^11312023122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11312023122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13308478560).

11312023122 is an abundant number, since it is smaller than the sum of its proper divisors (15304933998).

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

11312023122 is a wasteful number, since it uses less digits than its factorization.

11312023122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8248 (or 8245 counting only the distinct ones).

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

Adding to 11312023122 its reverse (22132021311), we get a palindrome (33444044433).

The spelling of 11312023122 in words is "eleven billion, three hundred twelve million, twenty-three thousand, one hundred twenty-two".