10451111309 has 2 divisors, whose sum is σ = 10451111310. Its totient is φ = 10451111308.

The previous prime is 10451111221. The next prime is 10451111347. The reversal of 10451111309 is 90311115401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6492814084 + 3958297225 = 80578^2 + 62915^2 .

It is a cyclic number.

It is not a de Polignac number, because 10451111309 - 2³² = 6156144013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10451110309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5225555654 + 5225555655.

It is an arithmetic number, because the mean of its divisors is an integer number (5225555655).

Almost surely, 2^10451111309 is an apocalyptic number.

It is an amenable number.

10451111309 is a deficient number, since it is larger than the sum of its proper divisors (1).

10451111309 is an equidigital number, since it uses as much as digits as its factorization.

10451111309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 26.

The spelling of 10451111309 in words is "ten billion, four hundred fifty-one million, one hundred eleven thousand, three hundred nine".