2723005510021 has 4 divisors (see below), whose sum is σ = 2724897801600. Its totient is φ = 2721113218444.

The previous prime is 2723005509977. The next prime is 2723005510061. The reversal of 2723005510021 is 1200155003272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2723005510021 - 2²⁷ = 2722871292293 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 (2723005510061) 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, 946143631 + ... + 946146508.

It is an arithmetic number, because the mean of its divisors is an integer number (681224450400).

Almost surely, 2^{2723005510021} is an apocalyptic number.

It is an amenable number.

2723005510021 is a deficient number, since it is larger than the sum of its proper divisors (1892291579).

2723005510021 is a wasteful number, since it uses less digits than its factorization.

2723005510021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892291578.

The product of its (nonzero) digits is 4200, while the sum is 28.

The spelling of 2723005510021 in words is "two trillion, seven hundred twenty-three billion, five million, five hundred ten thousand, twenty-one".