1001321948 has 48 divisors (see below), whose sum is σ = 1989915648. Its totient is φ = 440391600.

The previous prime is 1001321939. The next prime is 1001321969. The reversal of 1001321948 is 8491231001.

It is a self number, because there is not a number n which added to its sum of digits gives 1001321948.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162011 + ... + 168077.

It is an arithmetic number, because the mean of its divisors is an integer number (41456576).

Almost surely, 2^1001321948 is an apocalyptic number.

It is an amenable number.

1001321948 is a deficient number, since it is larger than the sum of its proper divisors (988593700).

1001321948 is a wasteful number, since it uses less digits than its factorization.

1001321948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6135 (or 6111 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1001321948 is about 31643.6715316033. The cubic root of 1001321948 is about 1000.4404553040.

Adding to 1001321948 its reverse (8491231001), we get a palindrome (9492552949).

The spelling of 1001321948 in words is "one billion, one million, three hundred twenty-one thousand, nine hundred forty-eight".