30112303231 has 4 divisors (see below), whose sum is σ = 30292616592. Its totient is φ = 29931989872.

The previous prime is 30112303229. The next prime is 30112303253. The reversal of 30112303231 is 13230321103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13230321103 = 73063 ⋅181081.

It is a cyclic number.

It is not a de Polignac number, because 30112303231 - 2¹ = 30112303229 is a prime.

It is a super-2 number, since 2×30112303231² (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 = 30112303199 and 30112303208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30112303211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90156430 + ... + 90156763.

It is an arithmetic number, because the mean of its divisors is an integer number (7573154148).

Almost surely, 2^30112303231 is an apocalyptic number.

30112303231 is a deficient number, since it is larger than the sum of its proper divisors (180313361).

30112303231 is a wasteful number, since it uses less digits than its factorization.

30112303231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180313360.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 30112303231 its reverse (13230321103), we get a palindrome (43342624334).

The spelling of 30112303231 in words is "thirty billion, one hundred twelve million, three hundred three thousand, two hundred thirty-one".