10012111309 has 2 divisors, whose sum is σ = 10012111310. Its totient is φ = 10012111308.

The previous prime is 10012111303. The next prime is 10012111339. The reversal of 10012111309 is 90311121001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8359444900 + 1652666409 = 91430^2 + 40653^2 .

It is a cyclic number.

It is not a de Polignac number, because 10012111309 - 2¹⁵ = 10012078541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10012111303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006055654 + 5006055655.

It is an arithmetic number, because the mean of its divisors is an integer number (5006055655).

Almost surely, 2^10012111309 is an apocalyptic number.

It is an amenable number.

10012111309 is a deficient number, since it is larger than the sum of its proper divisors (1).

10012111309 is an equidigital number, since it uses as much as digits as its factorization.

10012111309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 19.

The spelling of 10012111309 in words is "ten billion, twelve million, one hundred eleven thousand, three hundred nine".