1001012110203 has 16 divisors (see below), whose sum is σ = 1591671430656. Its totient is φ = 547137053760.

The previous prime is 1001012110199. The next prime is 1001012110277. The reversal of 1001012110203 is 3020112101001.

It is not a de Polignac number, because 1001012110203 - 2² = 1001012110199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001012110003) 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, 1036243938 + ... + 1036244903.

It is an arithmetic number, because the mean of its divisors is an integer number (99479464416).

Almost surely, 2^{1001012110203} is an apocalyptic number.

1001012110203 is a deficient number, since it is larger than the sum of its proper divisors (590659320453).

1001012110203 is a wasteful number, since it uses less digits than its factorization.

1001012110203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072488874.

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

Adding to 1001012110203 its reverse (3020112101001), we get a palindrome (4021124211204).

The spelling of 1001012110203 in words is "one trillion, one billion, twelve million, one hundred ten thousand, two hundred three".