30130703081 has 2 divisors, whose sum is σ = 30130703082. Its totient is φ = 30130703080.

The previous prime is 30130703023. The next prime is 30130703111. The reversal of 30130703081 is 18030703103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24087040000 + 6043663081 = 155200^2 + 77741^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30130703081 is a prime.

It is a super-2 number, since 2×30130703081² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30130703081.

It is not a weakly prime, because it can be changed into another prime (30130003081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15065351540 + 15065351541.

It is an arithmetic number, because the mean of its divisors is an integer number (15065351541).

Almost surely, 2^30130703081 is an apocalyptic number.

It is an amenable number.

30130703081 is a deficient number, since it is larger than the sum of its proper divisors (1).

30130703081 is an equidigital number, since it uses as much as digits as its factorization.

30130703081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The spelling of 30130703081 in words is "thirty billion, one hundred thirty million, seven hundred three thousand, eighty-one".