10431211997 has 2 divisors, whose sum is σ = 10431211998. Its totient is φ = 10431211996.

The previous prime is 10431211969. The next prime is 10431212039. The reversal of 10431211997 is 79911213401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10175563876 + 255648121 = 100874^2 + 15989^2 .

It is a cyclic number.

It is not a de Polignac number, because 10431211997 - 2¹² = 10431207901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10431211997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10431211957) 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, 5215605998 + 5215605999.

It is an arithmetic number, because the mean of its divisors is an integer number (5215605999).

Almost surely, 2^10431211997 is an apocalyptic number.

It is an amenable number.

10431211997 is a deficient number, since it is larger than the sum of its proper divisors (1).

10431211997 is an equidigital number, since it uses as much as digits as its factorization.

10431211997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 38.

The spelling of 10431211997 in words is "ten billion, four hundred thirty-one million, two hundred eleven thousand, nine hundred ninety-seven".