1163361213 has 12 divisors (see below), whose sum is σ = 1920469408. Its totient is φ = 664777800.

The previous prime is 1163361209. The next prime is 1163361223. The reversal of 1163361213 is 3121633611.

1163361213 is a `hidden beast` number, since 1 + 1 + 6 + 33 + 612 + 13 = 666.

It is not a de Polignac number, because 1163361213 - 2² = 1163361209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163361223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9232963 + ... + 9233088.

Almost surely, 2^1163361213 is an apocalyptic number.

It is an amenable number.

1163361213 is a deficient number, since it is larger than the sum of its proper divisors (757108195).

1163361213 is a wasteful number, since it uses less digits than its factorization.

1163361213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18466064 (or 18466061 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 1163361213 is about 34108.0813444556. The cubic root of 1163361213 is about 1051.7314480379.

Adding to 1163361213 its reverse (3121633611), we get a palindrome (4284994824).

The spelling of 1163361213 in words is "one billion, one hundred sixty-three million, three hundred sixty-one thousand, two hundred thirteen".