1001001587923 has 2 divisors, whose sum is σ = 1001001587924. Its totient is φ = 1001001587922.

The previous prime is 1001001587809. The next prime is 1001001587953. The reversal of 1001001587923 is 3297851001001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001001587923 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001001587953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500500793961 + 500500793962.

It is an arithmetic number, because the mean of its divisors is an integer number (500500793962).

Almost surely, 2^{1001001587923} is an apocalyptic number.

1001001587923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001001587923 is an equidigital number, since it uses as much as digits as its factorization.

1001001587923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 37.

Adding to 1001001587923 its reverse (3297851001001), we get a palindrome (4298852588924).

The spelling of 1001001587923 in words is "one trillion, one billion, one million, five hundred eighty-seven thousand, nine hundred twenty-three".