1002501021723 has 4 divisors (see below), whose sum is σ = 1336668028968. Its totient is φ = 668334014480.

The previous prime is 1002501021703. The next prime is 1002501021737. The reversal of 1002501021723 is 3271201052001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1002501021723 - 2¹⁴ = 1002501005339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1002501021693 and 1002501021702.

It is not an unprimeable number, because it can be changed into a prime (1002501021703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167083503618 + ... + 167083503623.

It is an arithmetic number, because the mean of its divisors is an integer number (334167007242).

Almost surely, 2^{1002501021723} is an apocalyptic number.

1002501021723 is a deficient number, since it is larger than the sum of its proper divisors (334167007245).

1002501021723 is an equidigital number, since it uses as much as digits as its factorization.

1002501021723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334167007244.

The product of its (nonzero) digits is 840, while the sum is 24.

Adding to 1002501021723 its reverse (3271201052001), we get a palindrome (4273702073724).

The spelling of 1002501021723 in words is "one trillion, two billion, five hundred one million, twenty-one thousand, seven hundred twenty-three".