730123051720 has 32 divisors (see below), whose sum is σ = 1665280665720. Its totient is φ = 288048545280.

The previous prime is 730123051711. The next prime is 730123051733. The reversal of 730123051720 is 27150321037.

It can be written as a sum of positive squares in 4 ways, for example, as 691728216804 + 38394834916 = 831702^2 + 195946^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125018151 + ... + 125023990.

Almost surely, 2^730123051720 is an apocalyptic number.

It is an amenable number.

730123051720 is an abundant number, since it is smaller than the sum of its proper divisors (935157614000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

730123051720 is a wasteful number, since it uses less digits than its factorization.

730123051720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250042225 (or 250042221 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 31.

Adding to 730123051720 its reverse (27150321037), we get a palindrome (757273372757).

The spelling of 730123051720 in words is "seven hundred thirty billion, one hundred twenty-three million, fifty-one thousand, seven hundred twenty".