30113313231 has 16 divisors (see below), whose sum is σ = 41457102848. Its totient is φ = 19422871200.

The previous prime is 30113313221. The next prime is 30113313233. The reversal of 30113313231 is 13231331103.

It is not a de Polignac number, because 30113313231 - 2¹⁹ = 30112788943 is a prime.

It is a super-2 number, since 2×30113313231² (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 = 30113313198 and 30113313207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30113313233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333690 + ... + 414216.

It is an arithmetic number, because the mean of its divisors is an integer number (2591068928).

Almost surely, 2^30113313231 is an apocalyptic number.

30113313231 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

30113313231 is a deficient number, since it is larger than the sum of its proper divisors (11343789617).

30113313231 is a wasteful number, since it uses less digits than its factorization.

30113313231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84582.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 30113313231 its reverse (13231331103), we get a palindrome (43344644334).

The spelling of 30113313231 in words is "thirty billion, one hundred thirteen million, three hundred thirteen thousand, two hundred thirty-one".