10111041509 has 2 divisors, whose sum is σ = 10111041510. Its totient is φ = 10111041508.

The previous prime is 10111041497. The next prime is 10111041547. The reversal of 10111041509 is 90514011101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10093216225 + 17825284 = 100465^2 + 4222^2 .

It is a cyclic number.

It is not a de Polignac number, because 10111041509 - 2¹² = 10111037413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10111041209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055520754 + 5055520755.

It is an arithmetic number, because the mean of its divisors is an integer number (5055520755).

Almost surely, 2^10111041509 is an apocalyptic number.

It is an amenable number.

10111041509 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111041509 is an equidigital number, since it uses as much as digits as its factorization.

10111041509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 23.

The spelling of 10111041509 in words is "ten billion, one hundred eleven million, forty-one thousand, five hundred nine".