1142311016 has 64 divisors (see below), whose sum is σ = 2681856000. Its totient is φ = 443136960.

The previous prime is 1142311003. The next prime is 1142311019. The reversal of 1142311016 is 6101132411.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1142311019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143345 + ... + 151103.

It is an arithmetic number, because the mean of its divisors is an integer number (41904000).

Almost surely, 2^1142311016 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 1142311016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1340928000).

1142311016 is an abundant number, since it is smaller than the sum of its proper divisors (1539544984).

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

1142311016 is a wasteful number, since it uses less digits than its factorization.

1142311016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8022 (or 8018 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1142311016 is about 33798.0918988040. The cubic root of 1142311016 is about 1045.3493535213.

Adding to 1142311016 its reverse (6101132411), we get a palindrome (7243443427).

The spelling of 1142311016 in words is "one billion, one hundred forty-two million, three hundred eleven thousand, sixteen".