1108352510861 has 4 divisors (see below), whose sum is σ = 1108755697500. Its totient is φ = 1107949324224.

The previous prime is 1108352510821. The next prime is 1108352510917. The reversal of 1108352510861 is 1680152538011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 136341870025 + 972010640836 = 369245^2 + 985906^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1108352510861 is a prime.

It is a super-2 number, since 2×1108352510861² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1108352510821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201589196 + ... + 201594693.

It is an arithmetic number, because the mean of its divisors is an integer number (277188924375).

Almost surely, 2^{1108352510861} is an apocalyptic number.

It is an amenable number.

1108352510861 is a deficient number, since it is larger than the sum of its proper divisors (403186639).

1108352510861 is an equidigital number, since it uses as much as digits as its factorization.

1108352510861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403186638.

The product of its (nonzero) digits is 57600, while the sum is 41.

The spelling of 1108352510861 in words is "one trillion, one hundred eight billion, three hundred fifty-two million, five hundred ten thousand, eight hundred sixty-one".