31023123200533 has 2 divisors, whose sum is σ = 31023123200534. Its totient is φ = 31023123200532.

The previous prime is 31023123200401. The next prime is 31023123200551. The reversal of 31023123200533 is 33500232132013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30995753468689 + 27369731844 = 5567383^2 + 165438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31023123200533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31023123210533) 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, 15511561600266 + 15511561600267.

It is an arithmetic number, because the mean of its divisors is an integer number (15511561600267).

Almost surely, 2^{31023123200533} is an apocalyptic number.

It is an amenable number.

31023123200533 is a deficient number, since it is larger than the sum of its proper divisors (1).

31023123200533 is an equidigital number, since it uses as much as digits as its factorization.

31023123200533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 28.

Adding to 31023123200533 its reverse (33500232132013), we get a palindrome (64523355332546).

The spelling of 31023123200533 in words is "thirty-one trillion, twenty-three billion, one hundred twenty-three million, two hundred thousand, five hundred thirty-three".