10316115421 has 2 divisors, whose sum is σ = 10316115422. Its totient is φ = 10316115420.

The previous prime is 10316115409. The next prime is 10316115437. The reversal of 10316115421 is 12451161301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9803772196 + 512343225 = 99014^2 + 22635^2 .

It is a cyclic number.

It is not a de Polignac number, because 10316115421 - 2¹¹ = 10316113373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10316115221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5158057710 + 5158057711.

It is an arithmetic number, because the mean of its divisors is an integer number (5158057711).

Almost surely, 2^10316115421 is an apocalyptic number.

It is an amenable number.

10316115421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10316115421 is an equidigital number, since it uses as much as digits as its factorization.

10316115421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 25.

Adding to 10316115421 its reverse (12451161301), we get a palindrome (22767276722).

The spelling of 10316115421 in words is "ten billion, three hundred sixteen million, one hundred fifteen thousand, four hundred twenty-one".