7205273861321 has 4 divisors (see below), whose sum is σ = 7248419213952. Its totient is φ = 7162128508692.

The previous prime is 7205273861299. The next prime is 7205273861323. The reversal of 7205273861321 is 1231683725027.

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 7205273861321 - 2³⁰ = 7204200119497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7205273861323) 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, 21572676065 + ... + 21572676398.

It is an arithmetic number, because the mean of its divisors is an integer number (1812104803488).

Almost surely, 2^{7205273861321} is an apocalyptic number.

It is an amenable number.

7205273861321 is a deficient number, since it is larger than the sum of its proper divisors (43145352631).

7205273861321 is a wasteful number, since it uses less digits than its factorization.

7205273861321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43145352630.

The product of its (nonzero) digits is 846720, while the sum is 47.

The spelling of 7205273861321 in words is "seven trillion, two hundred five billion, two hundred seventy-three million, eight hundred sixty-one thousand, three hundred twenty-one".