20207014591 has 2 divisors, whose sum is σ = 20207014592. Its totient is φ = 20207014590.

The previous prime is 20207014571. The next prime is 20207014601. The reversal of 20207014591 is 19541070202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20207014591 - 2¹³ = 20207006399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20207014511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10103507295 + 10103507296.

It is an arithmetic number, because the mean of its divisors is an integer number (10103507296).

Almost surely, 2^20207014591 is an apocalyptic number.

20207014591 is a deficient number, since it is larger than the sum of its proper divisors (1).

20207014591 is an equidigital number, since it uses as much as digits as its factorization.

20207014591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

Adding to 20207014591 its reverse (19541070202), we get a palindrome (39748084793).

The spelling of 20207014591 in words is "twenty billion, two hundred seven million, fourteen thousand, five hundred ninety-one".