11502320749 has 2 divisors, whose sum is σ = 11502320750. Its totient is φ = 11502320748.

The previous prime is 11502320747. The next prime is 11502320759. The reversal of 11502320749 is 94702320511.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5979155625 + 5523165124 = 77325^2 + 74318^2 .

It is a cyclic number.

It is not a de Polignac number, because 11502320749 - 2¹ = 11502320747 is a prime.

It is a super-2 number, since 2×11502320749² (a number of 21 digits) contains 22 as substring.

Together with 11502320747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11502320747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5751160374 + 5751160375.

It is an arithmetic number, because the mean of its divisors is an integer number (5751160375).

Almost surely, 2^11502320749 is an apocalyptic number.

It is an amenable number.

11502320749 is a deficient number, since it is larger than the sum of its proper divisors (1).

11502320749 is an equidigital number, since it uses as much as digits as its factorization.

11502320749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 11502320749 in words is "eleven billion, five hundred two million, three hundred twenty thousand, seven hundred forty-nine".