1111322142 has 72 divisors (see below), whose sum is σ = 2876865264. Its totient is φ = 303697152.

The previous prime is 1111322129. The next prime is 1111322153. The reversal of 1111322142 is 2412231111.

1111322142 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 58318 + ... + 74990.

It is an arithmetic number, because the mean of its divisors is an integer number (39956462).

Almost surely, 2^1111322142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111322142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1438432632).

1111322142 is an abundant number, since it is smaller than the sum of its proper divisors (1765543122).

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

1111322142 is a wasteful number, since it uses less digits than its factorization.

1111322142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16734 (or 16708 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 1111322142 is about 33336.4986463786. The cubic root of 1111322142 is about 1035.8097367042.

Adding to 1111322142 its reverse (2412231111), we get a palindrome (3523553253).

The spelling of 1111322142 in words is "one billion, one hundred eleven million, three hundred twenty-two thousand, one hundred forty-two".