30111223231 has 2 divisors, whose sum is σ = 30111223232. Its totient is φ = 30111223230.

The previous prime is 30111223201. The next prime is 30111223249. The reversal of 30111223231 is 13232211103.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30111223231 - 2¹⁷ = 30111092159 is a prime.

It is a super-2 number, since 2×30111223231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30111223199 and 30111223208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30111223201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15055611615 + 15055611616.

It is an arithmetic number, because the mean of its divisors is an integer number (15055611616).

Almost surely, 2^30111223231 is an apocalyptic number.

30111223231 is a deficient number, since it is larger than the sum of its proper divisors (1).

30111223231 is an equidigital number, since it uses as much as digits as its factorization.

30111223231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 30111223231 its reverse (13232211103), we get a palindrome (43343434334).

The spelling of 30111223231 in words is "thirty billion, one hundred eleven million, two hundred twenty-three thousand, two hundred thirty-one".