1085223120 has 80 divisors (see below), whose sum is σ = 3414454080. Its totient is φ = 285069312.

The previous prime is 1085223119. The next prime is 1085223127. The reversal of 1085223120 is 213225801.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085223127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17665 + ... + 49824.

It is an arithmetic number, because the mean of its divisors is an integer number (42680676).

Almost surely, 2^1085223120 is an apocalyptic number.

1085223120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1085223120 is an abundant number, since it is smaller than the sum of its proper divisors (2329230960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1085223120 is a wasteful number, since it uses less digits than its factorization.

1085223120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67572 (or 67566 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1085223120 is about 32942.7248417613. The cubic root of 1085223120 is about 1027.6368735677.

Adding to 1085223120 its reverse (213225801), we get a palindrome (1298448921).

The spelling of 1085223120 in words is "one billion, eighty-five million, two hundred twenty-three thousand, one hundred twenty".