30131113211 has 2 divisors, whose sum is σ = 30131113212. Its totient is φ = 30131113210.

The previous prime is 30131113151. The next prime is 30131113213. The reversal of 30131113211 is 11231113103.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30131113211 is a prime.

Together with 30131113213, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30131113211.

It is not a weakly prime, because it can be changed into another prime (30131113213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15065556605 + 15065556606.

It is an arithmetic number, because the mean of its divisors is an integer number (15065556606).

Almost surely, 2^30131113211 is an apocalyptic number.

30131113211 is a deficient number, since it is larger than the sum of its proper divisors (1).

30131113211 is an equidigital number, since it uses as much as digits as its factorization.

30131113211 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 17.

Adding to 30131113211 its reverse (11231113103), we get a palindrome (41362226314).

The spelling of 30131113211 in words is "thirty billion, one hundred thirty-one million, one hundred thirteen thousand, two hundred eleven".