1320535132 has 24 divisors (see below), whose sum is σ = 2656894464. Its totient is φ = 562552752.

The previous prime is 1320535057. The next prime is 1320535157. The reversal of 1320535132 is 2315350231.

It is a junction number, because it is equal to n+sod(n) for n = 1320535097 and 1320535106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136528 + ... + 145879.

It is an arithmetic number, because the mean of its divisors is an integer number (110703936).

Almost surely, 2^1320535132 is an apocalyptic number.

It is an amenable number.

1320535132 is an abundant number, since it is smaller than the sum of its proper divisors (1336359332).

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

1320535132 is a wasteful number, since it uses less digits than its factorization.

1320535132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282585 (or 282583 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 1320535132 is about 36339.1680146918. The cubic root of 1320535132 is about 1097.1095276056.

Adding to 1320535132 its reverse (2315350231), we get a palindrome (3635885363).

The spelling of 1320535132 in words is "one billion, three hundred twenty million, five hundred thirty-five thousand, one hundred thirty-two".