1142011312 has 80 divisors (see below), whose sum is σ = 2547024480. Its totient is φ = 491360256.

The previous prime is 1142011309. The next prime is 1142011331. The reversal of 1142011312 is 2131102411.

It is a super-2 number, since 2×1142011312² = 2608379673471922688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 383943 + ... + 386905.

It is an arithmetic number, because the mean of its divisors is an integer number (31837806).

Almost surely, 2^1142011312 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 1142011312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1273512240).

1142011312 is an abundant number, since it is smaller than the sum of its proper divisors (1405013168).

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

1142011312 is a wasteful number, since it uses less digits than its factorization.

1142011312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3110 (or 3104 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1142011312 is about 33793.6578665287. The cubic root of 1142011312 is about 1045.2579240181.

Adding to 1142011312 its reverse (2131102411), we get a palindrome (3273113723).

The spelling of 1142011312 in words is "one billion, one hundred forty-two million, eleven thousand, three hundred twelve".