1113511871 has 8 divisors (see below), whose sum is σ = 1124810064. Its totient is φ = 1102230400.

The previous prime is 1113511837. The next prime is 1113511879. The reversal of 1113511871 is 1781153111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1113511871 - 2¹⁰ = 1113510847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113511879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162821 + ... + 169521.

It is an arithmetic number, because the mean of its divisors is an integer number (140601258).

Almost surely, 2^1113511871 is an apocalyptic number.

1113511871 is a deficient number, since it is larger than the sum of its proper divisors (11298193).

1113511871 is a wasteful number, since it uses less digits than its factorization.

1113511871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8361.

The product of its digits is 840, while the sum is 29.

The square root of 1113511871 is about 33369.3253003413. The cubic root of 1113511871 is about 1036.4896039420.

Adding to 1113511871 its reverse (1781153111), we get a palindrome (2894664982).

The spelling of 1113511871 in words is "one billion, one hundred thirteen million, five hundred eleven thousand, eight hundred seventy-one".