1321125324 has 12 divisors (see below), whose sum is σ = 3082625784. Its totient is φ = 440375104.

The previous prime is 1321125307. The next prime is 1321125341. The reversal of 1321125324 is 4235211231.

It is an interprime number because it is at equal distance from previous prime (1321125307) and next prime (1321125341).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1321125294 and 1321125303.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55046877 + ... + 55046900.

It is an arithmetic number, because the mean of its divisors is an integer number (256885482).

Almost surely, 2^1321125324 is an apocalyptic number.

It is an amenable number.

1321125324 is an abundant number, since it is smaller than the sum of its proper divisors (1761500460).

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

1321125324 is a wasteful number, since it uses less digits than its factorization.

1321125324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110093784 (or 110093782 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 1321125324 is about 36347.2877117399. The cubic root of 1321125324 is about 1097.2729484316.

Adding to 1321125324 its reverse (4235211231), we get a palindrome (5556336555).

The spelling of 1321125324 in words is "one billion, three hundred twenty-one million, one hundred twenty-five thousand, three hundred twenty-four".