1163240331 has 16 divisors (see below), whose sum is σ = 1708743168. Its totient is φ = 698012000.

The previous prime is 1163240329. The next prime is 1163240333. The reversal of 1163240331 is 1330423611.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1163240329) and next prime (1163240333).

It is a cyclic number.

It is not a de Polignac number, because 1163240331 - 2¹ = 1163240329 is a prime.

It is a super-2 number, since 2×1163240331² = 2706256135329979122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1163240333) 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, 171171 + ... + 177836.

It is an arithmetic number, because the mean of its divisors is an integer number (106796448).

Almost surely, 2^1163240331 is an apocalyptic number.

1163240331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1163240331 is a deficient number, since it is larger than the sum of its proper divisors (545502837).

1163240331 is a wasteful number, since it uses less digits than its factorization.

1163240331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349122.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 1163240331 is about 34106.3092550337. The cubic root of 1163240331 is about 1051.6950191675.

Adding to 1163240331 its reverse (1330423611), we get a palindrome (2493663942).

The spelling of 1163240331 in words is "one billion, one hundred sixty-three million, two hundred forty thousand, three hundred thirty-one".