1142102320 has 20 divisors (see below), whose sum is σ = 2655388080. Its totient is φ = 456840896.

The previous prime is 1142102261. The next prime is 1142102323. The reversal of 1142102320 is 232012411.

It is a tau number, because it is divible by the number of its divisors (20).

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

It is a junction number, because it is equal to n+sod(n) for n = 1142102294 and 1142102303.

It is not an unprimeable number, because it can be changed into a prime (1142102323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7138060 + ... + 7138219.

It is an arithmetic number, because the mean of its divisors is an integer number (132769404).

Almost surely, 2^1142102320 is an apocalyptic number.

1142102320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142102320 is an abundant number, since it is smaller than the sum of its proper divisors (1513285760).

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

1142102320 is a wasteful number, since it uses less digits than its factorization.

1142102320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14276292 (or 14276286 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1142102320 is about 33795.0043645507. The cubic root of 1142102320 is about 1045.2856891565.

Adding to 1142102320 its reverse (232012411), we get a palindrome (1374114731).

The spelling of 1142102320 in words is "one billion, one hundred forty-two million, one hundred two thousand, three hundred twenty".