1321353124 has 48 divisors (see below), whose sum is σ = 2852819200. Its totient is φ = 521479296.

The previous prime is 1321353091. The next prime is 1321353127. The reversal of 1321353124 is 4213531231.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1321353127) 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, 155662 + ... + 163930.

Almost surely, 2^1321353124 is an apocalyptic number.

1321353124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1321353124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1426409600).

1321353124 is an abundant number, since it is smaller than the sum of its proper divisors (1531466076).

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

1321353124 is a wasteful number, since it uses less digits than its factorization.

1321353124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8732 (or 8730 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 1321353124 is about 36350.4212355235. The cubic root of 1321353124 is about 1097.3360119447.

Adding to 1321353124 its reverse (4213531231), we get a palindrome (5534884355).

The spelling of 1321353124 in words is "one billion, three hundred twenty-one million, three hundred fifty-three thousand, one hundred twenty-four".