30321130423523 has 2 divisors, whose sum is σ = 30321130423524. Its totient is φ = 30321130423522.

The previous prime is 30321130423489. The next prime is 30321130423541. The reversal of 30321130423523 is 32532403112303.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (32532403112303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30321130423523 - 2⁶ = 30321130423459 is a prime.

It is a super-2 number, since 2×30321130423523² (a number of 28 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 30321130423523.

It is not a weakly prime, because it can be changed into another prime (30321130423543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15160565211761 + 15160565211762.

It is an arithmetic number, because the mean of its divisors is an integer number (15160565211762).

Almost surely, 2^{30321130423523} is an apocalyptic number.

30321130423523 is a deficient number, since it is larger than the sum of its proper divisors (1).

30321130423523 is an equidigital number, since it uses as much as digits as its factorization.

30321130423523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 32.

Adding to 30321130423523 its reverse (32532403112303), we get a palindrome (62853533535826).

The spelling of 30321130423523 in words is "thirty trillion, three hundred twenty-one billion, one hundred thirty million, four hundred twenty-three thousand, five hundred twenty-three".