1321153932 has 48 divisors (see below), whose sum is σ = 3557981952. Its totient is φ = 373732800.

The previous prime is 1321153909. The next prime is 1321153969. The reversal of 1321153932 is 2393511231.

It is a self number, because there is not a number n which added to its sum of digits gives 1321153932.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69378 + ... + 86345.

It is an arithmetic number, because the mean of its divisors is an integer number (74124624).

Almost surely, 2^1321153932 is an apocalyptic number.

1321153932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1321153932 is an abundant number, since it is smaller than the sum of its proper divisors (2236828020).

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

1321153932 is a wasteful number, since it uses less digits than its factorization.

1321153932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155838 (or 155836 counting only the distinct ones).

The product of its digits is 4860, while the sum is 30.

The square root of 1321153932 is about 36347.6812465390. The cubic root of 1321153932 is about 1097.2808685881.

The spelling of 1321153932 in words is "one billion, three hundred twenty-one million, one hundred fifty-three thousand, nine hundred thirty-two".