1325310042 has 32 divisors (see below), whose sum is σ = 3093737472. Its totient is φ = 370602864.

The previous prime is 1325310023. The next prime is 1325310043. The reversal of 1325310042 is 2400135231.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1325310043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333718 + ... + 337665.

It is an arithmetic number, because the mean of its divisors is an integer number (96679296).

Almost surely, 2^1325310042 is an apocalyptic number.

1325310042 is an abundant number, since it is smaller than the sum of its proper divisors (1768427430).

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

1325310042 is a wasteful number, since it uses less digits than its factorization.

1325310042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671442.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1325310042 is about 36404.8079516978. The cubic root of 1325310042 is about 1098.4302795024.

Adding to 1325310042 its reverse (2400135231), we get a palindrome (3725445273).

The spelling of 1325310042 in words is "one billion, three hundred twenty-five million, three hundred ten thousand, forty-two".