30168535013 has 2 divisors, whose sum is σ = 30168535014. Its totient is φ = 30168535012.

The previous prime is 30168534971. The next prime is 30168535021. The reversal of 30168535013 is 31053586103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29686600804 + 481934209 = 172298^2 + 21953^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30168535013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30168535213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15084267506 + 15084267507.

It is an arithmetic number, because the mean of its divisors is an integer number (15084267507).

Almost surely, 2^30168535013 is an apocalyptic number.

It is an amenable number.

30168535013 is a deficient number, since it is larger than the sum of its proper divisors (1).

30168535013 is an equidigital number, since it uses as much as digits as its factorization.

30168535013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 30168535013 in words is "thirty billion, one hundred sixty-eight million, five hundred thirty-five thousand, thirteen".