1011112010001 has 20 divisors (see below), whose sum is σ = 1589922721200. Its totient is φ = 638597057976.

The previous prime is 1011112009993. The next prime is 1011112010023. The reversal of 1011112010001 is 1000102111101.

It is not a de Polignac number, because 1011112010001 - 2³ = 1011112009993 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 (1011112010801) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 328494891 + ... + 328497968.

It is an arithmetic number, because the mean of its divisors is an integer number (79496136060).

Almost surely, 2^{1011112010001} is an apocalyptic number.

It is an amenable number.

1011112010001 is a deficient number, since it is larger than the sum of its proper divisors (578810711199).

1011112010001 is an equidigital number, since it uses as much as digits as its factorization.

1011112010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656992890 (or 656992881 counting only the distinct ones).

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

Adding to 1011112010001 its reverse (1000102111101), we get a palindrome (2011214121102).

It can be divided in two parts, 101111 and 2010001, that added together give a palindrome (2111112).

The spelling of 1011112010001 in words is "one trillion, eleven billion, one hundred twelve million, ten thousand, one".