1001321052 has 48 divisors (see below), whose sum is σ = 2463014400. Its totient is φ = 315740160.

The previous prime is 1001321021. The next prime is 1001321053. The reversal of 1001321052 is 2501231001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001321053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172477 + ... + 178187.

It is an arithmetic number, because the mean of its divisors is an integer number (51312800).

Almost surely, 2^1001321052 is an apocalyptic number.

1001321052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1001321052 is an abundant number, since it is smaller than the sum of its proper divisors (1461693348).

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

1001321052 is a wasteful number, since it uses less digits than its factorization.

1001321052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6506 (or 6504 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1001321052 is about 31643.6573739509. The cubic root of 1001321052 is about 1000.4401569001.

Adding to 1001321052 its reverse (2501231001), we get a palindrome (3502552053).

The spelling of 1001321052 in words is "one billion, one million, three hundred twenty-one thousand, fifty-two".