30102013031 has 2 divisors, whose sum is σ = 30102013032. Its totient is φ = 30102013030.

The previous prime is 30102013009. The next prime is 30102013057. The reversal of 30102013031 is 13031020103.

It is a weak prime.

It is an emirp because it is prime and its reverse (13031020103) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30102013031 is a prime.

It is a super-2 number, since 2×30102013031² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 30102012997 and 30102013015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30102013001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15051006515 + 15051006516.

It is an arithmetic number, because the mean of its divisors is an integer number (15051006516).

Almost surely, 2^30102013031 is an apocalyptic number.

30102013031 is a deficient number, since it is larger than the sum of its proper divisors (1).

30102013031 is an equidigital number, since it uses as much as digits as its factorization.

30102013031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 30102013031 its reverse (13031020103), we get a palindrome (43133033134).

The spelling of 30102013031 in words is "thirty billion, one hundred two million, thirteen thousand, thirty-one".