20310145436233 has 2 divisors, whose sum is σ = 20310145436234. Its totient is φ = 20310145436232.

The previous prime is 20310145436201. The next prime is 20310145436249. The reversal of 20310145436233 is 33263454101302.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20202894426169 + 107251010064 = 4494763^2 + 327492^2 .

It is a cyclic number.

It is not a de Polignac number, because 20310145436233 - 2⁵ = 20310145436201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20310145436192 and 20310145436201.

It is not a weakly prime, because it can be changed into another prime (20310145436333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155072718116 + 10155072718117.

It is an arithmetic number, because the mean of its divisors is an integer number (10155072718117).

Almost surely, 2^{20310145436233} is an apocalyptic number.

It is an amenable number.

20310145436233 is a deficient number, since it is larger than the sum of its proper divisors (1).

20310145436233 is an equidigital number, since it uses as much as digits as its factorization.

20310145436233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 37.

Adding to 20310145436233 its reverse (33263454101302), we get a palindrome (53573599537535).

The spelling of 20310145436233 in words is "twenty trillion, three hundred ten billion, one hundred forty-five million, four hundred thirty-six thousand, two hundred thirty-three".