1002011101203 has 12 divisors (see below), whose sum is σ = 1554139667400. Its totient is φ = 572577772032.

The previous prime is 1002011101193. The next prime is 1002011101249. The reversal of 1002011101203 is 3021011102001.

It is not a de Polignac number, because 1002011101203 - 2⁴ = 1002011101187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1002011101253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3408200878 + ... + 3408201171.

It is an arithmetic number, because the mean of its divisors is an integer number (129511638950).

Almost surely, 2^{1002011101203} is an apocalyptic number.

1002011101203 is a deficient number, since it is larger than the sum of its proper divisors (552128566197).

1002011101203 is an equidigital number, since it uses as much as digits as its factorization.

1002011101203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6816402066 (or 6816402059 counting only the distinct ones).

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

Adding to 1002011101203 its reverse (3021011102001), we get a palindrome (4023022203204).

The spelling of 1002011101203 in words is "one trillion, two billion, eleven million, one hundred one thousand, two hundred three".