30113113123 has 2 divisors, whose sum is σ = 30113113124. Its totient is φ = 30113113122.

The previous prime is 30113113117. The next prime is 30113113133. The reversal of 30113113123 is 32131131103.

It is a weak prime.

It is an emirp because it is prime and its reverse (32131131103) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30113113123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30113113123.

It is not a weakly prime, because it can be changed into another prime (30113113133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15056556561 + 15056556562.

It is an arithmetic number, because the mean of its divisors is an integer number (15056556562).

Almost surely, 2^30113113123 is an apocalyptic number.

30113113123 is a deficient number, since it is larger than the sum of its proper divisors (1).

30113113123 is an equidigital number, since it uses as much as digits as its factorization.

30113113123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 30113113123 its reverse (32131131103), we get a palindrome (62244244226).

The spelling of 30113113123 in words is "thirty billion, one hundred thirteen million, one hundred thirteen thousand, one hundred twenty-three".