30321131500453 has 2 divisors, whose sum is σ = 30321131500454. Its totient is φ = 30321131500452.

The previous prime is 30321131500447. The next prime is 30321131500511. The reversal of 30321131500453 is 35400513112303.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19617254564769 + 10703876935684 = 4429137^2 + 3271678^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30321131500453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30321131500853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15160565750226 + 15160565750227.

It is an arithmetic number, because the mean of its divisors is an integer number (15160565750227).

Almost surely, 2^{30321131500453} is an apocalyptic number.

It is an amenable number.

30321131500453 is a deficient number, since it is larger than the sum of its proper divisors (1).

30321131500453 is an equidigital number, since it uses as much as digits as its factorization.

30321131500453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 30321131500453 its reverse (35400513112303), we get a palindrome (65721644612756).

The spelling of 30321131500453 in words is "thirty trillion, three hundred twenty-one billion, one hundred thirty-one million, five hundred thousand, four hundred fifty-three".