111213151312111 has 64 divisors (see below), whose sum is σ = 125911778918400. Its totient is φ = 97606019174400.

The previous prime is 111213151312099. The next prime is 111213151312117.

111213151312111 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 111213151312111 - 2⁹ = 111213151311599 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 (111213151312117) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5956455306 + ... + 5956473976.

It is an arithmetic number, because the mean of its divisors is an integer number (1967371545600).

Almost surely, 2^{111213151312111} is an apocalyptic number.

111213151312111 is a deficient number, since it is larger than the sum of its proper divisors (14698627606289).

111213151312111 is a wasteful number, since it uses less digits than its factorization.

111213151312111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19720.

The product of its digits is 180, while the sum is 25.

The spelling of 111213151312111 in words is "one hundred eleven trillion, two hundred thirteen billion, one hundred fifty-one million, three hundred twelve thousand, one hundred eleven".