1085111111138 has 8 divisors (see below), whose sum is σ = 1683793103580. Its totient is φ = 523846743280.

The previous prime is 1085111111129. The next prime is 1085111111179. The reversal of 1085111111138 is 8311111115801.

It can be written as a sum of positive squares in 2 ways, for example, as 1057456418929 + 27654692209 = 1028327^2 + 166297^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1085111111138² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9354406073 + ... + 9354406188.

Almost surely, 2^{1085111111138} is an apocalyptic number.

1085111111138 is a deficient number, since it is larger than the sum of its proper divisors (598681992442).

1085111111138 is a wasteful number, since it uses less digits than its factorization.

1085111111138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18708812292.

The product of its (nonzero) digits is 960, while the sum is 32.

Adding to 1085111111138 its reverse (8311111115801), we get a palindrome (9396222226939).

The spelling of 1085111111138 in words is "one trillion, eighty-five billion, one hundred eleven million, one hundred eleven thousand, one hundred thirty-eight".