111215545311 has 16 divisors (see below), whose sum is σ = 160129270784. Its totient is φ = 68253840864.

The previous prime is 111215545297. The next prime is 111215545367. The reversal of 111215545311 is 113545512111.

It is not a de Polignac number, because 111215545311 - 2¹⁴ = 111215528927 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 (111215545381) 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, 3870811 + ... + 3899436.

It is an arithmetic number, because the mean of its divisors is an integer number (10008079424).

Almost surely, 2^111215545311 is an apocalyptic number.

111215545311 is a deficient number, since it is larger than the sum of its proper divisors (48913725473).

111215545311 is a wasteful number, since it uses less digits than its factorization.

111215545311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7770630.

The product of its digits is 3000, while the sum is 30.

The spelling of 111215545311 in words is "one hundred eleven billion, two hundred fifteen million, five hundred forty-five thousand, three hundred eleven".