11521310023859 has 2 divisors, whose sum is σ = 11521310023860. Its totient is φ = 11521310023858.

The previous prime is 11521310023831. The next prime is 11521310024023. The reversal of 11521310023859 is 95832001312511.

11521310023859 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 is a cyclic number.

It is not a de Polignac number, because 11521310023859 - 2⁸ = 11521310023603 is a prime.

It is a super-2 number, since 2×11521310023859² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11521310025859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5760655011929 + 5760655011930.

It is an arithmetic number, because the mean of its divisors is an integer number (5760655011930).

Almost surely, 2^{11521310023859} is an apocalyptic number.

11521310023859 is a deficient number, since it is larger than the sum of its proper divisors (1).

11521310023859 is an equidigital number, since it uses as much as digits as its factorization.

11521310023859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 41.

The spelling of 11521310023859 in words is "eleven trillion, five hundred twenty-one billion, three hundred ten million, twenty-three thousand, eight hundred fifty-nine".