11100020121003 has 16 divisors (see below), whose sum is σ = 17095218155136. Its totient is φ = 6331562279040.

The previous prime is 11100020120963. The next prime is 11100020121011. The reversal of 11100020121003 is 30012102000111.

It is not a de Polignac number, because 11100020121003 - 2⁶ = 11100020120939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11100020121003.

It is not an unprimeable number, because it can be changed into a prime (11100020121503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9893065501 + ... + 9893066622.

It is an arithmetic number, because the mean of its divisors is an integer number (1068451134696).

Almost surely, 2^{11100020121003} is an apocalyptic number.

11100020121003 is a deficient number, since it is larger than the sum of its proper divisors (5995198034133).

11100020121003 is a wasteful number, since it uses less digits than its factorization.

11100020121003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19786132154.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 11100020121003 its reverse (30012102000111), we get a palindrome (41112122121114).

The spelling of 11100020121003 in words is "eleven trillion, one hundred billion, twenty million, one hundred twenty-one thousand, three".