111120100100001 has 32 divisors (see below), whose sum is σ = 166618307520000. Its totient is φ = 73182029388624.

The previous prime is 111120100099783. The next prime is 111120100100047. The reversal of 111120100100001 is 100001001021111.

It is not a de Polignac number, because 111120100100001 - 2¹⁴ = 111120100083617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (111120100107001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28034050 + ... + 31751348.

It is an arithmetic number, because the mean of its divisors is an integer number (5206822110000).

Almost surely, 2^{111120100100001} is an apocalyptic number.

It is an amenable number.

111120100100001 is a deficient number, since it is larger than the sum of its proper divisors (55498207419999).

111120100100001 is a wasteful number, since it uses less digits than its factorization.

111120100100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3730730 (or 3730724 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 111120100100001 its reverse (100001001021111), we get a palindrome (211121101121112).

The spelling of 111120100100001 in words is "one hundred eleven trillion, one hundred twenty billion, one hundred million, one hundred thousand, one".