10490311009 has 2 divisors, whose sum is σ = 10490311010. Its totient is φ = 10490311008.

The previous prime is 10490311001. The next prime is 10490311021. The reversal of 10490311009 is 90011309401.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6121497600 + 4368813409 = 78240^2 + 66097^2 .

It is a cyclic number.

It is not a de Polignac number, because 10490311009 - 2³ = 10490311001 is a prime.

It is a super-2 number, since 2×10490311009² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10490311001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5245155504 + 5245155505.

It is an arithmetic number, because the mean of its divisors is an integer number (5245155505).

Almost surely, 2^10490311009 is an apocalyptic number.

It is an amenable number.

10490311009 is a deficient number, since it is larger than the sum of its proper divisors (1).

10490311009 is an equidigital number, since it uses as much as digits as its factorization.

10490311009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 28.

The spelling of 10490311009 in words is "ten billion, four hundred ninety million, three hundred eleven thousand, nine".