1312144432 has 20 divisors (see below), whose sum is σ = 2560573960. Its totient is φ = 651351168.

The previous prime is 1312144423. The next prime is 1312144459. The reversal of 1312144432 is 2344412131.

It is a junction number, because it is equal to n+sod(n) for n = 1312144397 and 1312144406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292773 + ... + 297220.

It is an arithmetic number, because the mean of its divisors is an integer number (128028698).

Almost surely, 2^1312144432 is an apocalyptic number.

It is an amenable number.

1312144432 is a deficient number, since it is larger than the sum of its proper divisors (1248429528).

1312144432 is a wasteful number, since it uses less digits than its factorization.

1312144432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590140 (or 590134 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 1312144432 is about 36223.5342284543. The cubic root of 1312144432 is about 1094.7809051304.

Adding to 1312144432 its reverse (2344412131), we get a palindrome (3656556563).

The spelling of 1312144432 in words is "one billion, three hundred twelve million, one hundred forty-four thousand, four hundred thirty-two".