1325042011 has 4 divisors (see below), whose sum is σ = 1325601832. Its totient is φ = 1324482192.

The previous prime is 1325042003. The next prime is 1325042023. The reversal of 1325042011 is 1102405231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1325042011 - 2³ = 1325042003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1325042011.

It is not an unprimeable number, because it can be changed into a prime (1325042911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276345 + ... + 281098.

It is an arithmetic number, because the mean of its divisors is an integer number (331400458).

Almost surely, 2^1325042011 is an apocalyptic number.

1325042011 is a deficient number, since it is larger than the sum of its proper divisors (559821).

1325042011 is an equidigital number, since it uses as much as digits as its factorization.

1325042011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559820.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1325042011 is about 36401.1265072937. The cubic root of 1325042011 is about 1098.3562255813.

Adding to 1325042011 its reverse (1102405231), we get a palindrome (2427447242).

The spelling of 1325042011 in words is "one billion, three hundred twenty-five million, forty-two thousand, eleven".