1011011001103 has 4 divisors (see below), whose sum is σ = 1070482236480. Its totient is φ = 951539765728.

The previous prime is 1011011001101. The next prime is 1011011001211. The reversal of 1011011001103 is 3011001101101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1011011001103 - 2¹ = 1011011001101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1011011001103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011011001101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29735617663 + ... + 29735617696.

It is an arithmetic number, because the mean of its divisors is an integer number (267620559120).

Almost surely, 2^{1011011001103} is an apocalyptic number.

1011011001103 is a deficient number, since it is larger than the sum of its proper divisors (59471235377).

1011011001103 is an equidigital number, since it uses as much as digits as its factorization.

1011011001103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59471235376.

The product of its (nonzero) digits is 3, while the sum is 10.

Adding to 1011011001103 its reverse (3011001101101), we get a palindrome (4022012102204).

The spelling of 1011011001103 in words is "one trillion, eleven billion, eleven million, one thousand, one hundred three".