1161023310 has 96 divisors (see below), whose sum is σ = 3207204000. Its totient is φ = 290573568.

The previous prime is 1161023287. The next prime is 1161023327. The reversal of 1161023310 is 133201611.

1161023310 is a `hidden beast` number, since 1 + 1 + 610 + 23 + 31 + 0 = 666.

It is a super-2 number, since 2×1161023310² = 2695950252726712200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 183276 + ... + 189504.

It is an arithmetic number, because the mean of its divisors is an integer number (33408375).

Almost surely, 2^1161023310 is an apocalyptic number.

1161023310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1161023310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1603602000).

1161023310 is an abundant number, since it is smaller than the sum of its proper divisors (2046180690).

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

1161023310 is a wasteful number, since it uses less digits than its factorization.

1161023310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6370 (or 6367 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1161023310 is about 34073.7921282619. The cubic root of 1161023310 is about 1051.0264520232.

Adding to 1161023310 its reverse (133201611), we get a palindrome (1294224921).

The spelling of 1161023310 in words is "one billion, one hundred sixty-one million, twenty-three thousand, three hundred ten".