1161331050 has 48 divisors (see below), whose sum is σ = 3141932832. Its totient is φ = 281534400.

The previous prime is 1161331049. The next prime is 1161331051. The reversal of 1161331050 is 501331611.

It is an interprime number because it is at equal distance from previous prime (1161331049) and next prime (1161331051).

It is not an unprimeable number, because it can be changed into a prime (1161331051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 350269 + ... + 353568.

It is an arithmetic number, because the mean of its divisors is an integer number (65456934).

Almost surely, 2^1161331050 is an apocalyptic number.

1161331050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1161331050 is an abundant number, since it is smaller than the sum of its proper divisors (1980601782).

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

1161331050 is a wasteful number, since it uses less digits than its factorization.

1161331050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703863 (or 703858 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 1161331050 is about 34078.3076164295. The cubic root of 1161331050 is about 1051.1193052572.

Adding to 1161331050 its reverse (501331611), we get a palindrome (1662662661).

The spelling of 1161331050 in words is "one billion, one hundred sixty-one million, three hundred thirty-one thousand, fifty".