11231312022 has 48 divisors (see below), whose sum is σ = 29020043520. Its totient is φ = 3069426096.

The previous prime is 11231312011. The next prime is 11231312023. The reversal of 11231312022 is 22021313211.

It is a super-2 number, since 2×11231312022² (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 = 11231311986 and 11231312004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231312023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1934872 + ... + 1940667.

It is an arithmetic number, because the mean of its divisors is an integer number (604584240).

Almost surely, 2^11231312022 is an apocalyptic number.

11231312022 is an abundant number, since it is smaller than the sum of its proper divisors (17788731498).

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

11231312022 is a wasteful number, since it uses less digits than its factorization.

11231312022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3875577 (or 3875574 counting only the distinct ones).

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

Adding to 11231312022 its reverse (22021313211), we get a palindrome (33252625233).

The spelling of 11231312022 in words is "eleven billion, two hundred thirty-one million, three hundred twelve thousand, twenty-two".