11530142069 has 2 divisors, whose sum is σ = 11530142070. Its totient is φ = 11530142068.

The previous prime is 11530142021. The next prime is 11530142119. The reversal of 11530142069 is 96024103511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11159387044 + 370755025 = 105638^2 + 19255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11530142069 is a prime.

It is a super-2 number, since 2×11530142069² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11530142009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5765071034 + 5765071035.

It is an arithmetic number, because the mean of its divisors is an integer number (5765071035).

Almost surely, 2^11530142069 is an apocalyptic number.

It is an amenable number.

11530142069 is a deficient number, since it is larger than the sum of its proper divisors (1).

11530142069 is an equidigital number, since it uses as much as digits as its factorization.

11530142069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 11530142069 in words is "eleven billion, five hundred thirty million, one hundred forty-two thousand, sixty-nine".