1302143312 has 20 divisors (see below), whose sum is σ = 2523999540. Its totient is φ = 650788608.

The previous prime is 1302143309. The next prime is 1302143363. The reversal of 1302143312 is 2133412031.

It can be written as a sum of positive squares in 2 ways, for example, as 1046910736 + 255232576 = 32356^2 + 15976^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23114 + ... + 56022.

It is an arithmetic number, because the mean of its divisors is an integer number (126199977).

Almost surely, 2^1302143312 is an apocalyptic number.

It is an amenable number.

1302143312 is a deficient number, since it is larger than the sum of its proper divisors (1221856228).

1302143312 is a wasteful number, since it uses less digits than its factorization.

1302143312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35390 (or 35384 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1302143312 is about 36085.2229035654. Note that the first 3 decimals coincide. The cubic root of 1302143312 is about 1091.9923474442.

Adding to 1302143312 its reverse (2133412031), we get a palindrome (3435555343).

The spelling of 1302143312 in words is "one billion, three hundred two million, one hundred forty-three thousand, three hundred twelve".