11520203069 has 2 divisors, whose sum is σ = 11520203070. Its totient is φ = 11520203068.

The previous prime is 11520203059. The next prime is 11520203141. The reversal of 11520203069 is 96030202511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11336925625 + 183277444 = 106475^2 + 13538^2 .

It is a cyclic number.

It is not a de Polignac number, because 11520203069 - 2⁴ = 11520203053 is a prime.

It is a super-2 number, since 2×11520203069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11520203029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5760101534 + 5760101535.

It is an arithmetic number, because the mean of its divisors is an integer number (5760101535).

Almost surely, 2^11520203069 is an apocalyptic number.

It is an amenable number.

11520203069 is a deficient number, since it is larger than the sum of its proper divisors (1).

11520203069 is an equidigital number, since it uses as much as digits as its factorization.

11520203069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The spelling of 11520203069 in words is "eleven billion, five hundred twenty million, two hundred three thousand, sixty-nine".