30707111945 has 4 divisors (see below), whose sum is σ = 36848534340. Its totient is φ = 24565689552.

The previous prime is 30707111923. The next prime is 30707111959. The reversal of 30707111945 is 54911170703.

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 21571384384 + 9135727561 = 146872^2 + 95581^2 .

It is a cyclic number.

It is not a de Polignac number, because 30707111945 - 2¹⁸ = 30706849801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30707111899 and 30707111908.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3070711190 + ... + 3070711199.

It is an arithmetic number, because the mean of its divisors is an integer number (9212133585).

Almost surely, 2^30707111945 is an apocalyptic number.

It is an amenable number.

30707111945 is a deficient number, since it is larger than the sum of its proper divisors (6141422395).

30707111945 is an equidigital number, since it uses as much as digits as its factorization.

30707111945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6141422394.

The product of its (nonzero) digits is 26460, while the sum is 38.

The spelling of 30707111945 in words is "thirty billion, seven hundred seven million, one hundred eleven thousand, nine hundred forty-five".