1325032100 has 72 divisors (see below), whose sum is σ = 3362576448. Its totient is φ = 443721600.

The previous prime is 1325032087. The next prime is 1325032129. The reversal of 1325032100 is 12305231.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8090 + ... + 52110.

Almost surely, 2^1325032100 is an apocalyptic number.

1325032100 is a gapful number since it is divisible by the number (10) 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 1325032100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1681288224).

1325032100 is an abundant number, since it is smaller than the sum of its proper divisors (2037544348).

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

1325032100 is a wasteful number, since it uses less digits than its factorization.

1325032100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44085 (or 44078 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1325032100 is about 36400.9903711424. The cubic root of 1325032100 is about 1098.3534870931.

Adding to 1325032100 its reverse (12305231), we get a palindrome (1337337331).

The spelling of 1325032100 in words is "one billion, three hundred twenty-five million, thirty-two thousand, one hundred".