7230657670321 has 4 divisors (see below), whose sum is σ = 7272453379572. Its totient is φ = 7188861961072.

The previous prime is 7230657670309. The next prime is 7230657670331. The reversal of 7230657670321 is 1230767560327.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5361257762721 + 1869399907600 = 2315439^2 + 1367260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7230657670321 is a prime.

It is a super-2 number, since 2×7230657670321² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7230657670331) 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, 20897854366 + ... + 20897854711.

It is an arithmetic number, because the mean of its divisors is an integer number (1818113344893).

Almost surely, 2^{7230657670321} is an apocalyptic number.

It is an amenable number.

7230657670321 is a deficient number, since it is larger than the sum of its proper divisors (41795709251).

7230657670321 is a wasteful number, since it uses less digits than its factorization.

7230657670321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41795709250.

The product of its (nonzero) digits is 2222640, while the sum is 49.

The spelling of 7230657670321 in words is "seven trillion, two hundred thirty billion, six hundred fifty-seven million, six hundred seventy thousand, three hundred twenty-one".