111001011001002 has 24 divisors (see below), whose sum is σ = 240505547068800. Its totient is φ = 36999820605480.

The previous prime is 111001011000983. The next prime is 111001011001009. The reversal of 111001011001002 is 200100110100111.

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 (111001011001009) 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, 41706252 + ... + 44287847.

It is an arithmetic number, because the mean of its divisors is an integer number (10021064461200).

Almost surely, 2^{111001011001002} is an apocalyptic number.

111001011001002 is an abundant number, since it is smaller than the sum of its proper divisors (129504536067798).

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

111001011001002 is a wasteful number, since it uses less digits than its factorization.

111001011001002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86065818 (or 86065815 counting only the distinct ones).

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

Adding to 111001011001002 its reverse (200100110100111), we get a palindrome (311101121101113).

The spelling of 111001011001002 in words is "one hundred eleven trillion, one billion, eleven million, one thousand, two".