11115920969 has 2 divisors, whose sum is σ = 11115920970. Its totient is φ = 11115920968.

The previous prime is 11115920947. The next prime is 11115921017. The reversal of 11115920969 is 96902951111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10411549369 + 704371600 = 102037^2 + 26540^2 .

It is a cyclic number.

It is not a de Polignac number, because 11115920969 - 2²⁸ = 10847485513 is a prime.

It is a super-2 number, since 2×11115920969² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11115920909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5557960484 + 5557960485.

It is an arithmetic number, because the mean of its divisors is an integer number (5557960485).

Almost surely, 2^11115920969 is an apocalyptic number.

It is an amenable number.

11115920969 is a deficient number, since it is larger than the sum of its proper divisors (1).

11115920969 is an equidigital number, since it uses as much as digits as its factorization.

11115920969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43740, while the sum is 44.

The spelling of 11115920969 in words is "eleven billion, one hundred fifteen million, nine hundred twenty thousand, nine hundred sixty-nine".