111511143213 has 8 divisors (see below), whose sum is σ = 148686315168. Its totient is φ = 74338366704.

The previous prime is 111511143193. The next prime is 111511143217. The reversal of 111511143213 is 312341115111.

It is a happy number.

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

It is not a de Polignac number, because 111511143213 - 2⁸ = 111511142957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111511143217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487270 + ... + 678567.

It is an arithmetic number, because the mean of its divisors is an integer number (18585789396).

Almost surely, 2^111511143213 is an apocalyptic number.

It is an amenable number.

111511143213 is a deficient number, since it is larger than the sum of its proper divisors (37175171955).

111511143213 is a wasteful number, since it uses less digits than its factorization.

111511143213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197723.

The product of its digits is 360, while the sum is 24.

Adding to 111511143213 its reverse (312341115111), we get a palindrome (423852258324).

The spelling of 111511143213 in words is "one hundred eleven billion, five hundred eleven million, one hundred forty-three thousand, two hundred thirteen".