1312031103132 has 48 divisors (see below), whose sum is σ = 3161797517312. Its totient is φ = 423016655040.

The previous prime is 1312031103067. The next prime is 1312031103139. The reversal of 1312031103132 is 2313011302131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1312031103099 and 1312031103108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312031103139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193228 + ... + 1631379.

Almost surely, 2^{1312031103132} is an apocalyptic number.

1312031103132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312031103132 is an abundant number, since it is smaller than the sum of its proper divisors (1849766414180).

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

1312031103132 is a wasteful number, since it uses less digits than its factorization.

1312031103132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826578 (or 1826576 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1312031103132 its reverse (2313011302131), we get a palindrome (3625042405263).

The spelling of 1312031103132 in words is "one trillion, three hundred twelve billion, thirty-one million, one hundred three thousand, one hundred thirty-two".