1115212113 has 12 divisors (see below), whose sum is σ = 1613813968. Its totient is φ = 742112280.

The previous prime is 1115212103. The next prime is 1115212117. The reversal of 1115212113 is 3112125111.

1115212113 is a `hidden beast` number, since 111 + 521 + 21 + 13 = 666.

It is not a de Polignac number, because 1115212113 - 2¹⁷ = 1115081041 is a prime.

It is a super-3 number, since 3×1115212113³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115212117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108343 + ... + 118188.

Almost surely, 2^1115212113 is an apocalyptic number.

It is an amenable number.

1115212113 is a deficient number, since it is larger than the sum of its proper divisors (498601855).

1115212113 is a wasteful number, since it uses less digits than its factorization.

1115212113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227084 (or 227081 counting only the distinct ones).

The product of its digits is 60, while the sum is 18.

The square root of 1115212113 is about 33394.7917046955. The cubic root of 1115212113 is about 1037.0168807524.

Adding to 1115212113 its reverse (3112125111), we get a palindrome (4227337224).

The spelling of 1115212113 in words is "one billion, one hundred fifteen million, two hundred twelve thousand, one hundred thirteen".