30730202556073 has 8 divisors (see below), whose sum is σ = 31566600945288. Its totient is φ = 29894112186624.

The previous prime is 30730202556049. The next prime is 30730202556089. The reversal of 30730202556073 is 37065520203703.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15738771052944 + 14991431503129 = 3967212^2 + 3871877^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30730202556073 - 2³³ = 30721612621481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30730202556013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76802686 + ... + 77201767.

It is an arithmetic number, because the mean of its divisors is an integer number (3945825118161).

Almost surely, 2^{30730202556073} is an apocalyptic number.

It is an amenable number.

30730202556073 is a deficient number, since it is larger than the sum of its proper divisors (836398389215).

30730202556073 is a wasteful number, since it uses less digits than its factorization.

30730202556073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154009883.

The product of its (nonzero) digits is 793800, while the sum is 43.

Adding to 30730202556073 its reverse (37065520203703), we get a palindrome (67795722759776).

The spelling of 30730202556073 in words is "thirty trillion, seven hundred thirty billion, two hundred two million, five hundred fifty-six thousand, seventy-three".