11890023529 has 2 divisors, whose sum is σ = 11890023530. Its totient is φ = 11890023528.

The previous prime is 11890023527. The next prime is 11890023617. The reversal of 11890023529 is 92532009811.

11890023529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6140289600 + 5749733929 = 78360^2 + 75827^2 .

It is a cyclic number.

It is not a de Polignac number, because 11890023529 - 2¹ = 11890023527 is a prime.

It is a super-2 number, since 2×11890023529² (a number of 21 digits) contains 22 as substring.

Together with 11890023527, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11890023491 and 11890023500.

It is not a weakly prime, because it can be changed into another prime (11890023527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5945011764 + 5945011765.

It is an arithmetic number, because the mean of its divisors is an integer number (5945011765).

Almost surely, 2^11890023529 is an apocalyptic number.

It is an amenable number.

11890023529 is a deficient number, since it is larger than the sum of its proper divisors (1).

11890023529 is an equidigital number, since it uses as much as digits as its factorization.

11890023529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 11890023529 in words is "eleven billion, eight hundred ninety million, twenty-three thousand, five hundred twenty-nine".