1085311117 has 8 divisors (see below), whose sum is σ = 1187206272. Its totient is φ = 983954400.

The previous prime is 1085311081. The next prime is 1085311133. The reversal of 1085311117 is 7111135801.

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

It is a de Polignac number, because none of the positive numbers 2^k-1085311117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085311177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130384 + ... + 138457.

It is an arithmetic number, because the mean of its divisors is an integer number (148400784).

Almost surely, 2^1085311117 is an apocalyptic number.

It is an amenable number.

1085311117 is a deficient number, since it is larger than the sum of its proper divisors (101895155).

1085311117 is a wasteful number, since it uses less digits than its factorization.

1085311117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269219.

The product of its (nonzero) digits is 840, while the sum is 28.

The square root of 1085311117 is about 32944.0604206585. The cubic root of 1085311117 is about 1027.6646486603.

Adding to 1085311117 its reverse (7111135801), we get a palindrome (8196446918).

The spelling of 1085311117 in words is "one billion, eighty-five million, three hundred eleven thousand, one hundred seventeen".