11161320319 has 2 divisors, whose sum is σ = 11161320320. Its totient is φ = 11161320318.

The previous prime is 11161320283. The next prime is 11161320341. The reversal of 11161320319 is 91302316111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11161320319 - 2²¹ = 11159223167 is a prime.

It is a super-2 number, since 2×11161320319² (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 (11161320349) 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, 5580660159 + 5580660160.

It is an arithmetic number, because the mean of its divisors is an integer number (5580660160).

Almost surely, 2^11161320319 is an apocalyptic number.

11161320319 is a deficient number, since it is larger than the sum of its proper divisors (1).

11161320319 is an equidigital number, since it uses as much as digits as its factorization.

11161320319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 28.

The spelling of 11161320319 in words is "eleven billion, one hundred sixty-one million, three hundred twenty thousand, three hundred nineteen".