20310155464523 has 2 divisors, whose sum is σ = 20310155464524. Its totient is φ = 20310155464522.

The previous prime is 20310155464453. The next prime is 20310155464553. The reversal of 20310155464523 is 32546455101302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20310155464523 - 2¹⁶ = 20310155398987 is a prime.

It is not a weakly prime, because it can be changed into another prime (20310155464553) 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, 10155077732261 + 10155077732262.

It is an arithmetic number, because the mean of its divisors is an integer number (10155077732262).

Almost surely, 2^{20310155464523} is an apocalyptic number.

20310155464523 is a deficient number, since it is larger than the sum of its proper divisors (1).

20310155464523 is an equidigital number, since it uses as much as digits as its factorization.

20310155464523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 20310155464523 in words is "twenty trillion, three hundred ten billion, one hundred fifty-five million, four hundred sixty-four thousand, five hundred twenty-three".