1100011110021 has 8 divisors (see below), whose sum is σ = 1629646088960. Its totient is φ = 733340739996.

The previous prime is 1100011109983. The next prime is 1100011110031. The reversal of 1100011110021 is 1200111100011.

It is not a de Polignac number, because 1100011110021 - 2¹⁷ = 1100010978949 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100011109985 and 1100011110012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100011110031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20370576085 + ... + 20370576138.

It is an arithmetic number, because the mean of its divisors is an integer number (203705761120).

Almost surely, 2^{1100011110021} is an apocalyptic number.

It is an amenable number.

1100011110021 is a deficient number, since it is larger than the sum of its proper divisors (529634978939).

1100011110021 is an equidigital number, since it uses as much as digits as its factorization.

1100011110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40741152232 (or 40741152226 counting only the distinct ones).

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

Adding to 1100011110021 its reverse (1200111100011), we get a palindrome (2300122210032).

The spelling of 1100011110021 in words is "one trillion, one hundred billion, eleven million, one hundred ten thousand, twenty-one".