2102001123403 has 32 divisors (see below), whose sum is σ = 2202841670400. Its totient is φ = 2004157209600.

The previous prime is 2102001123373. The next prime is 2102001123407. The reversal of 2102001123403 is 3043211002012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2102001123403 - 2⁹ = 2102001122891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102001123407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128311273 + ... + 128327653.

It is an arithmetic number, because the mean of its divisors is an integer number (68838802200).

Almost surely, 2^{2102001123403} is an apocalyptic number.

2102001123403 is a deficient number, since it is larger than the sum of its proper divisors (100840546997).

2102001123403 is a wasteful number, since it uses less digits than its factorization.

2102001123403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16903.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2102001123403 its reverse (3043211002012), we get a palindrome (5145212125415).

The spelling of 2102001123403 in words is "two trillion, one hundred two billion, one million, one hundred twenty-three thousand, four hundred three".