20200111001003 has 16 divisors (see below), whose sum is σ = 20336979047616. Its totient is φ = 20063439298560.

The previous prime is 20200111000999. The next prime is 20200111001009. The reversal of 20200111001003 is 30010011100202.

It is a cyclic number.

It is not a de Polignac number, because 20200111001003 - 2² = 20200111000999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20200111001009) 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, 1326068075 + ... + 1326083307.

It is an arithmetic number, because the mean of its divisors is an integer number (1271061190476).

Almost surely, 2^{20200111001003} is an apocalyptic number.

20200111001003 is a deficient number, since it is larger than the sum of its proper divisors (136868046613).

20200111001003 is a wasteful number, since it uses less digits than its factorization.

20200111001003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21094.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20200111001003 its reverse (30010011100202), we get a palindrome (50210122101205).

The spelling of 20200111001003 in words is "twenty trillion, two hundred billion, one hundred eleven million, one thousand, three".