1331134011 has 12 divisors (see below), whose sum is σ = 1939766088. Its totient is φ = 879568704.

The previous prime is 1331134001. The next prime is 1331134019. The reversal of 1331134011 is 1104311331.

1331134011 is a `hidden beast` number, since 1 + 3 + 311 + 340 + 11 = 666.

It is not a de Polignac number, because 1331134011 - 2²⁷ = 1196916283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1331134019) 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, 653425 + ... + 655458.

It is an arithmetic number, because the mean of its divisors is an integer number (161647174).

Almost surely, 2^1331134011 is an apocalyptic number.

1331134011 is a deficient number, since it is larger than the sum of its proper divisors (608632077).

1331134011 is a wasteful number, since it uses less digits than its factorization.

1331134011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309002 (or 1308999 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1331134011 is about 36484.7092766271. The cubic root of 1331134011 is about 1100.0369163919.

Adding to 1331134011 its reverse (1104311331), we get a palindrome (2435445342).

The spelling of 1331134011 in words is "one billion, three hundred thirty-one million, one hundred thirty-four thousand, eleven".