30111012131231 has 2 divisors, whose sum is σ = 30111012131232. Its totient is φ = 30111012131230.

The previous prime is 30111012131183. The next prime is 30111012131243. The reversal of 30111012131231 is 13213121011103.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30111012131231 is a prime.

It is a super-2 number, since 2×30111012131231² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30111012131281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15055506065615 + 15055506065616.

It is an arithmetic number, because the mean of its divisors is an integer number (15055506065616).

Almost surely, 2^{30111012131231} is an apocalyptic number.

30111012131231 is a deficient number, since it is larger than the sum of its proper divisors (1).

30111012131231 is an equidigital number, since it uses as much as digits as its factorization.

30111012131231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 30111012131231 its reverse (13213121011103), we get a palindrome (43324133142334).

The spelling of 30111012131231 in words is "thirty trillion, one hundred eleven billion, twelve million, one hundred thirty-one thousand, two hundred thirty-one".