30321102313231 has 4 divisors (see below), whose sum is σ = 30403721120992. Its totient is φ = 30238483505472.

The previous prime is 30321102313217. The next prime is 30321102313237. The reversal of 30321102313231 is 13231320112303.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30321102313231 - 2²³ = 30321093924623 is a prime.

It is a super-2 number, since 2×30321102313231² (a number of 28 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 = 30321102313196 and 30321102313205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30321102313237) 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, 41309403330 + ... + 41309404063.

It is an arithmetic number, because the mean of its divisors is an integer number (7600930280248).

Almost surely, 2^{30321102313231} is an apocalyptic number.

30321102313231 is a deficient number, since it is larger than the sum of its proper divisors (82618807761).

30321102313231 is an equidigital number, since it uses as much as digits as its factorization.

30321102313231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82618807760.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 30321102313231 its reverse (13231320112303), we get a palindrome (43552422425534).

The spelling of 30321102313231 in words is "thirty trillion, three hundred twenty-one billion, one hundred two million, three hundred thirteen thousand, two hundred thirty-one".