2111168013533 has 2 divisors, whose sum is σ = 2111168013534. Its totient is φ = 2111168013532.

The previous prime is 2111168013527. The next prime is 2111168013547. The reversal of 2111168013533 is 3353108611112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1574929621444 + 536238392089 = 1254962^2 + 732283^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111168013533 - 2⁸ = 2111168013277 is a prime.

It is a super-2 number, since 2×2111168013533² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2111168013493 and 2111168013502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111168013503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055584006766 + 1055584006767.

It is an arithmetic number, because the mean of its divisors is an integer number (1055584006767).

Almost surely, 2^{2111168013533} is an apocalyptic number.

It is an amenable number.

2111168013533 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111168013533 is an equidigital number, since it uses as much as digits as its factorization.

2111168013533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 2111168013533 in words is "two trillion, one hundred eleven billion, one hundred sixty-eight million, thirteen thousand, five hundred thirty-three".