1163031340 has 48 divisors (see below), whose sum is σ = 2630799360. Its totient is φ = 430626240.

The previous prime is 1163031299. The next prime is 1163031343. The reversal of 1163031340 is 431303611.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1163031343) 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, 26520 + ... + 55039.

It is an arithmetic number, because the mean of its divisors is an integer number (54808320).

Almost surely, 2^1163031340 is an apocalyptic number.

1163031340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1163031340 is an abundant number, since it is smaller than the sum of its proper divisors (1467768020).

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

1163031340 is a wasteful number, since it uses less digits than its factorization.

1163031340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81622 (or 81620 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1163031340 is about 34103.2453001177. The cubic root of 1163031340 is about 1051.6320319091.

Adding to 1163031340 its reverse (431303611), we get a palindrome (1594334951).

The spelling of 1163031340 in words is "one billion, one hundred sixty-three million, thirty-one thousand, three hundred forty".