30730213073 has 16 divisors (see below), whose sum is σ = 36214045056. Its totient is φ = 25531808640.

The previous prime is 30730213021. The next prime is 30730213091. The reversal of 30730213073 is 37031203703.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 30730213073 - 2⁸ = 30730212817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30730213273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 468188 + ... + 529773.

It is an arithmetic number, because the mean of its divisors is an integer number (2263377816).

Almost surely, 2^30730213073 is an apocalyptic number.

It is an amenable number.

30730213073 is a deficient number, since it is larger than the sum of its proper divisors (5483831983).

30730213073 is an equidigital number, since it uses as much as digits as its factorization.

30730213073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998104.

The product of its (nonzero) digits is 7938, while the sum is 29.

Adding to 30730213073 its reverse (37031203703), we get a palindrome (67761416776).

The spelling of 30730213073 in words is "thirty billion, seven hundred thirty million, two hundred thirteen thousand, seventy-three".