1001310989 has 8 divisors (see below), whose sum is σ = 1151645568. Its totient is φ = 852798960.

The previous prime is 1001310971. The next prime is 1001311013. The reversal of 1001310989 is 9890131001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001310989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001310949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454457 + ... + 456654.

It is an arithmetic number, because the mean of its divisors is an integer number (143955696).

Almost surely, 2^1001310989 is an apocalyptic number.

It is an amenable number.

1001310989 is a deficient number, since it is larger than the sum of its proper divisors (150334579).

1001310989 is an equidigital number, since it uses as much as digits as its factorization.

1001310989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911275.

The product of its (nonzero) digits is 1944, while the sum is 32.

The square root of 1001310989 is about 31643.4983685433. The cubic root of 1001310989 is about 1000.4368055065.

The spelling of 1001310989 in words is "one billion, one million, three hundred ten thousand, nine hundred eighty-nine".