1002101100203 has 32 divisors (see below), whose sum is σ = 1184504315904. Its totient is φ = 829856524032.

The previous prime is 1002101100193. The next prime is 1002101100241. The reversal of 1002101100203 is 3020011012001.

It is a cyclic number.

It is not a de Polignac number, because 1002101100203 - 2⁶ = 1002101100139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1002101100103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22124726 + ... + 22169972.

It is an arithmetic number, because the mean of its divisors is an integer number (37015759872).

Almost surely, 2^{1002101100203} is an apocalyptic number.

1002101100203 is a deficient number, since it is larger than the sum of its proper divisors (182403215701).

1002101100203 is a wasteful number, since it uses less digits than its factorization.

1002101100203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45891.

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

Adding to 1002101100203 its reverse (3020011012001), we get a palindrome (4022112112204).

The spelling of 1002101100203 in words is "one trillion, two billion, one hundred one million, one hundred thousand, two hundred three".