30311201112231 has 24 divisors (see below), whose sum is σ = 43768567901136. Its totient is φ = 18650638506240.

The previous prime is 30311201112217. The next prime is 30311201112307. The reversal of 30311201112231 is 13221110211303.

It is not a de Polignac number, because 30311201112231 - 2¹⁵ = 30311201079463 is a prime.

It is a super-2 number, since 2×30311201112231² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30311201112198 and 30311201112207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30311201112131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75141 + ... + 7786401.

It is an arithmetic number, because the mean of its divisors is an integer number (1823690329214).

Almost surely, 2^{30311201112231} is an apocalyptic number.

30311201112231 is a deficient number, since it is larger than the sum of its proper divisors (13457366788905).

30311201112231 is a wasteful number, since it uses less digits than its factorization.

30311201112231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7719043 (or 7719030 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 30311201112231 its reverse (13221110211303), we get a palindrome (43532311323534).

The spelling of 30311201112231 in words is "thirty trillion, three hundred eleven billion, two hundred one million, one hundred twelve thousand, two hundred thirty-one".