11442163841 has 2 divisors, whose sum is σ = 11442163842. Its totient is φ = 11442163840.

The previous prime is 11442163787. The next prime is 11442163913. The reversal of 11442163841 is 14836124411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11336073841 + 106090000 = 106471^2 + 10300^2 .

It is a cyclic number.

It is not a de Polignac number, because 11442163841 - 2³⁰ = 10368422017 is a prime.

It is a super-2 number, since 2×11442163841² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11442163241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5721081920 + 5721081921.

It is an arithmetic number, because the mean of its divisors is an integer number (5721081921).

Almost surely, 2^11442163841 is an apocalyptic number.

It is an amenable number.

11442163841 is a deficient number, since it is larger than the sum of its proper divisors (1).

11442163841 is an equidigital number, since it uses as much as digits as its factorization.

11442163841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 35.

The spelling of 11442163841 in words is "eleven billion, four hundred forty-two million, one hundred sixty-three thousand, eight hundred forty-one".