20112211102003 has 4 divisors (see below), whose sum is σ = 20540130487200. Its totient is φ = 19684291716808.

The previous prime is 20112211101977. The next prime is 20112211102079. The reversal of 20112211102003 is 30020111221102.

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 20112211102003 - 2¹³ = 20112211093811 is a prime.

It is a super-2 number, since 2×20112211102003² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112211102903) 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, 213959692528 + ... + 213959692621.

It is an arithmetic number, because the mean of its divisors is an integer number (5135032621800).

Almost surely, 2^{20112211102003} is an apocalyptic number.

20112211102003 is a deficient number, since it is larger than the sum of its proper divisors (427919385197).

20112211102003 is an equidigital number, since it uses as much as digits as its factorization.

20112211102003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427919385196.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20112211102003 its reverse (30020111221102), we get a palindrome (50132322323105).

The spelling of 20112211102003 in words is "twenty trillion, one hundred twelve billion, two hundred eleven million, one hundred two thousand, three".