20312555323 has 2 divisors, whose sum is σ = 20312555324. Its totient is φ = 20312555322.

The previous prime is 20312555311. The next prime is 20312555353. The reversal of 20312555323 is 32355521302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20312555323 - 2³³ = 11722620731 is a prime.

It is not a weakly prime, because it can be changed into another prime (20312555353) 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, 10156277661 + 10156277662.

It is an arithmetic number, because the mean of its divisors is an integer number (10156277662).

Almost surely, 2^20312555323 is an apocalyptic number.

20312555323 is a deficient number, since it is larger than the sum of its proper divisors (1).

20312555323 is an equidigital number, since it uses as much as digits as its factorization.

20312555323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 31.

The spelling of 20312555323 in words is "twenty billion, three hundred twelve million, five hundred fifty-five thousand, three hundred twenty-three".