1325111205 has 64 divisors (see below), whose sum is σ = 2448506880. Its totient is φ = 605203200.

The previous prime is 1325111201. The next prime is 1325111209. The reversal of 1325111205 is 5021115231.

It is an interprime number because it is at equal distance from previous prime (1325111201) and next prime (1325111209).

It is not a de Polignac number, because 1325111205 - 2² = 1325111201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325111201) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 597679 + ... + 599891.

It is an arithmetic number, because the mean of its divisors is an integer number (38257920).

Almost surely, 2^1325111205 is an apocalyptic number.

1325111205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1325111205 is a deficient number, since it is larger than the sum of its proper divisors (1123395675).

1325111205 is a wasteful number, since it uses less digits than its factorization.

1325111205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1325111205 is about 36402.0769325048. The cubic root of 1325111205 is about 1098.3753440538.

Adding to 1325111205 its reverse (5021115231), we get a palindrome (6346226436).

The spelling of 1325111205 in words is "one billion, three hundred twenty-five million, one hundred eleven thousand, two hundred five".