111020112087 has 16 divisors (see below), whose sum is σ = 149434035840. Its totient is φ = 73310018912.

The previous prime is 111020112079. The next prime is 111020112089. The reversal of 111020112087 is 780211020111.

It is a cyclic number.

It is not a de Polignac number, because 111020112087 - 2³ = 111020112079 is a prime.

It is a super-3 number, since 3×111020112087³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020112089) 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, 2296588 + ... + 2344430.

It is an arithmetic number, because the mean of its divisors is an integer number (9339627240).

Almost surely, 2^111020112087 is an apocalyptic number.

111020112087 is a deficient number, since it is larger than the sum of its proper divisors (38413923753).

111020112087 is a wasteful number, since it uses less digits than its factorization.

111020112087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55182.

The product of its (nonzero) digits is 224, while the sum is 24.

Adding to 111020112087 its reverse (780211020111), we get a palindrome (891231132198).

The spelling of 111020112087 in words is "one hundred eleven billion, twenty million, one hundred twelve thousand, eighty-seven".