1312543032 has 32 divisors (see below), whose sum is σ = 3370045200. Its totient is φ = 425689344.

The previous prime is 1312543031. The next prime is 1312543033. The reversal of 1312543032 is 2303452131.

It is an interprime number because it is at equal distance from previous prime (1312543031) and next prime (1312543033).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1312542993 and 1312543011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312543031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 738157 + ... + 739932.

Almost surely, 2^1312543032 is an apocalyptic number.

1312543032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312543032 is an abundant number, since it is smaller than the sum of its proper divisors (2057502168).

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

1312543032 is a wasteful number, since it uses less digits than its factorization.

1312543032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478135 (or 1478131 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1312543032 is about 36229.0357586287. The cubic root of 1312543032 is about 1094.8917505217.

Adding to 1312543032 its reverse (2303452131), we get a palindrome (3615995163).

Subtracting 1312543032 from its reverse (2303452131), we obtain a palindrome (990909099).

The spelling of 1312543032 in words is "one billion, three hundred twelve million, five hundred forty-three thousand, thirty-two".