205234350407 has 2 divisors, whose sum is σ = 205234350408. Its totient is φ = 205234350406.

The previous prime is 205234350403. The next prime is 205234350437. The reversal of 205234350407 is 704053432502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205234350407 - 2² = 205234350403 is a prime.

It is a super-2 number, since 2×205234350407² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205234350403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102617175203 + 102617175204.

It is an arithmetic number, because the mean of its divisors is an integer number (102617175204).

Almost surely, 2^205234350407 is an apocalyptic number.

205234350407 is a deficient number, since it is larger than the sum of its proper divisors (1).

205234350407 is an equidigital number, since it uses as much as digits as its factorization.

205234350407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 35.

Adding to 205234350407 its reverse (704053432502), we get a palindrome (909287782909).

The spelling of 205234350407 in words is "two hundred five billion, two hundred thirty-four million, three hundred fifty thousand, four hundred seven".