1161313353 has 12 divisors (see below), whose sum is σ = 1683983028. Its totient is φ = 771194880.

The previous prime is 1161313337. The next prime is 1161313357. The reversal of 1161313353 is 3533131611.

1161313353 is a `hidden beast` number, since 1 + 1 + 613 + 13 + 35 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1041804729 + 119508624 = 32277^2 + 10932^2 .

It is not a de Polignac number, because 1161313353 - 2⁴ = 1161313337 is a prime.

It is a super-2 number, since 2×1161313353² = 2697297407712205218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1161313357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 248728 + ... + 253353.

It is an arithmetic number, because the mean of its divisors is an integer number (140331919).

Almost surely, 2^1161313353 is an apocalyptic number.

It is an amenable number.

1161313353 is a deficient number, since it is larger than the sum of its proper divisors (522669675).

1161313353 is a wasteful number, since it uses less digits than its factorization.

1161313353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502344 (or 502341 counting only the distinct ones).

The product of its digits is 2430, while the sum is 27.

The square root of 1161313353 is about 34078.0479634618. The cubic root of 1161313353 is about 1051.1139660525.

Adding to 1161313353 its reverse (3533131611), we get a palindrome (4694444964).

The spelling of 1161313353 in words is "one billion, one hundred sixty-one million, three hundred thirteen thousand, three hundred fifty-three".