30112211031 has 24 divisors (see below), whose sum is σ = 47141170560. Its totient is φ = 17046155952.

The previous prime is 30112211029. The next prime is 30112211069. The reversal of 30112211031 is 13011221103.

It is a happy number.

It is not a de Polignac number, because 30112211031 - 2¹ = 30112211029 is a prime.

It is a super-2 number, since 2×30112211031² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30112211031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30112211071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 941491 + ... + 972948.

It is an arithmetic number, because the mean of its divisors is an integer number (1964215440).

Almost surely, 2^30112211031 is an apocalyptic number.

30112211031 is a deficient number, since it is larger than the sum of its proper divisors (17028959529).

30112211031 is a wasteful number, since it uses less digits than its factorization.

30112211031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914563 (or 1914556 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 30112211031 its reverse (13011221103), we get a palindrome (43123432134).

The spelling of 30112211031 in words is "thirty billion, one hundred twelve million, two hundred eleven thousand, thirty-one".