1161993303 has 16 divisors (see below), whose sum is σ = 1723818240. Its totient is φ = 773606232.

The previous prime is 1161993293. The next prime is 1161993353. The reversal of 1161993303 is 3033991611.

1161993303 is a `hidden beast` number, since 1 + 1 + 619 + 9 + 3 + 30 + 3 = 666.

It is not a de Polignac number, because 1161993303 - 2¹² = 1161989207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161993353) 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, 8901 + ... + 49022.

It is an arithmetic number, because the mean of its divisors is an integer number (107738640).

Almost surely, 2^1161993303 is an apocalyptic number.

1161993303 is a deficient number, since it is larger than the sum of its proper divisors (561824937).

1161993303 is an equidigital number, since it uses as much as digits as its factorization.

1161993303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58675 (or 58669 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 36.

The square root of 1161993303 is about 34088.0228672770. The cubic root of 1161993303 is about 1051.3190687487.

The spelling of 1161993303 in words is "one billion, one hundred sixty-one million, nine hundred ninety-three thousand, three hundred three".