1321302531132 has 36 divisors (see below), whose sum is σ = 3380199655560. Its totient is φ = 435127740192.

The previous prime is 1321302531127. The next prime is 1321302531169. The reversal of 1321302531132 is 2311352031231.

1321302531132 is a `hidden beast` number, since 1 + 321 + 3 + 0 + 25 + 311 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 1321302531096 and 1321302531105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 221098507 + ... + 221104482.

Almost surely, 2^{1321302531132} is an apocalyptic number.

1321302531132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1321302531132 is an abundant number, since it is smaller than the sum of its proper divisors (2058897124428).

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

1321302531132 is a wasteful number, since it uses less digits than its factorization.

1321302531132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442203082 (or 442203077 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

Adding to 1321302531132 its reverse (2311352031231), we get a palindrome (3632654562363).

The spelling of 1321302531132 in words is "one trillion, three hundred twenty-one billion, three hundred two million, five hundred thirty-one thousand, one hundred thirty-two".