1161241203 has 4 divisors (see below), whose sum is σ = 1548321608. Its totient is φ = 774160800.

The previous prime is 1161241163. The next prime is 1161241231. The reversal of 1161241203 is 3021421611.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1161241203 - 2¹³ = 1161233011 is a prime.

It is a super-2 number, since 2×1161241203² = 2696962263089774418, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1161241203.

It is not an unprimeable number, because it can be changed into a prime (1161240203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193540198 + ... + 193540203.

It is an arithmetic number, because the mean of its divisors is an integer number (387080402).

Almost surely, 2^1161241203 is an apocalyptic number.

1161241203 is a deficient number, since it is larger than the sum of its proper divisors (387080405).

1161241203 is an equidigital number, since it uses as much as digits as its factorization.

1161241203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387080404.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1161241203 is about 34076.9893476522. The cubic root of 1161241203 is about 1051.0921977551.

Adding to 1161241203 its reverse (3021421611), we get a palindrome (4182662814).

The spelling of 1161241203 in words is "one billion, one hundred sixty-one million, two hundred forty-one thousand, two hundred three".