1113800811 has 16 divisors (see below), whose sum is σ = 1499232000. Its totient is φ = 735486048.

The previous prime is 1113800803. The next prime is 1113800819. The reversal of 1113800811 is 1180083111.

It is an interprime number because it is at equal distance from previous prime (1113800803) and next prime (1113800819).

It is not a de Polignac number, because 1113800811 - 2³ = 1113800803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1113800819) 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, 132640 + ... + 140786.

It is an arithmetic number, because the mean of its divisors is an integer number (93702000).

Almost surely, 2^1113800811 is an apocalyptic number.

1113800811 is a deficient number, since it is larger than the sum of its proper divisors (385431189).

1113800811 is a wasteful number, since it uses less digits than its factorization.

1113800811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8578.

The product of its (nonzero) digits is 192, while the sum is 24.

The square root of 1113800811 is about 33373.6544447862. The cubic root of 1113800811 is about 1036.5792474725.

Adding to 1113800811 its reverse (1180083111), we get a palindrome (2293883922).

The spelling of 1113800811 in words is "one billion, one hundred thirteen million, eight hundred thousand, eight hundred eleven".