20312045267 has 2 divisors, whose sum is σ = 20312045268. Its totient is φ = 20312045266.

The previous prime is 20312045231. The next prime is 20312045297. The reversal of 20312045267 is 76254021302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20312045267 - 2²⁰ = 20310996691 is a prime.

It is not a weakly prime, because it can be changed into another prime (20312045207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10156022633 + 10156022634.

It is an arithmetic number, because the mean of its divisors is an integer number (10156022634).

Almost surely, 2^20312045267 is an apocalyptic number.

20312045267 is a deficient number, since it is larger than the sum of its proper divisors (1).

20312045267 is an equidigital number, since it uses as much as digits as its factorization.

20312045267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 20312045267 its reverse (76254021302), we get a palindrome (96566066569).

The spelling of 20312045267 in words is "twenty billion, three hundred twelve million, forty-five thousand, two hundred sixty-seven".