111101111151102 has 24 divisors (see below), whose sum is σ = 240737243526000. Its totient is φ = 37030908430080.

The previous prime is 111101111151101. The next prime is 111101111151139. The reversal of 111101111151102 is 201151111101111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111101111151101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232695474 + ... + 233172437.

It is an arithmetic number, because the mean of its divisors is an integer number (10030718480250).

Almost surely, 2^{111101111151102} is an apocalyptic number.

111101111151102 is an abundant number, since it is smaller than the sum of its proper divisors (129636132374898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111101111151102 is a wasteful number, since it uses less digits than its factorization.

111101111151102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465881168 (or 465881165 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 18.

Adding to 111101111151102 its reverse (201151111101111), we get a palindrome (312252222252213).

The spelling of 111101111151102 in words is "one hundred eleven trillion, one hundred one billion, one hundred eleven million, one hundred fifty-one thousand, one hundred two".