11142422312 has 64 divisors (see below), whose sum is σ = 24934936320. Its totient is φ = 4563998208.

The previous prime is 11142422309. The next prime is 11142422323. The reversal of 11142422312 is 21322424111.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2054228 + ... + 2059644.

It is an arithmetic number, because the mean of its divisors is an integer number (389608380).

Almost surely, 2^11142422312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11142422312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12467468160).

11142422312 is an abundant number, since it is smaller than the sum of its proper divisors (13792514008).

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

11142422312 is a wasteful number, since it uses less digits than its factorization.

11142422312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7050 (or 7046 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

Adding to 11142422312 its reverse (21322424111), we get a palindrome (32464846423).

The spelling of 11142422312 in words is "eleven billion, one hundred forty-two million, four hundred twenty-two thousand, three hundred twelve".