30111323131 has 16 divisors (see below), whose sum is σ = 31042713600. Its totient is φ = 29194783488.

The previous prime is 30111323113. The next prime is 30111323141. The reversal of 30111323131 is 13132311103.

It is a cyclic number.

It is not a de Polignac number, because 30111323131 - 2¹³ = 30111314939 is a prime.

It is a super-2 number, since 2×30111323131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30111323099 and 30111323108.

It is not an unprimeable number, because it can be changed into a prime (30111323141) 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 in 15 ways as a sum of consecutive naturals, for example, 5138155 + ... + 5144011.

It is an arithmetic number, because the mean of its divisors is an integer number (1940169600).

Almost surely, 2^30111323131 is an apocalyptic number.

30111323131 is a deficient number, since it is larger than the sum of its proper divisors (931390469).

30111323131 is a wasteful number, since it uses less digits than its factorization.

30111323131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7098.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 30111323131 its reverse (13132311103), we get a palindrome (43243634234).

The spelling of 30111323131 in words is "thirty billion, one hundred eleven million, three hundred twenty-three thousand, one hundred thirty-one".