20531001367 has 2 divisors, whose sum is σ = 20531001368. Its totient is φ = 20531001366.

The previous prime is 20531001349. The next prime is 20531001391. The reversal of 20531001367 is 76310013502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20531001367 - 2²⁷ = 20396783639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20531001767) 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, 10265500683 + 10265500684.

It is an arithmetic number, because the mean of its divisors is an integer number (10265500684).

Almost surely, 2^20531001367 is an apocalyptic number.

20531001367 is a deficient number, since it is larger than the sum of its proper divisors (1).

20531001367 is an equidigital number, since it uses as much as digits as its factorization.

20531001367 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 28.

Adding to 20531001367 its reverse (76310013502), we get a palindrome (96841014869).

The spelling of 20531001367 in words is "twenty billion, five hundred thirty-one million, one thousand, three hundred sixty-seven".