1011001200003 has 16 divisors (see below), whose sum is σ = 1511520656800. Its totient is φ = 667817304480.

The previous prime is 1011001199927. The next prime is 1011001200037. The reversal of 1011001200003 is 3000021001101.

1011001200003 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1011001200003 - 2¹⁰ = 1011001198979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011001200203) 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, 171760768 + ... + 171766653.

It is an arithmetic number, because the mean of its divisors is an integer number (94470041050).

Almost surely, 2^{1011001200003} is an apocalyptic number.

1011001200003 is a deficient number, since it is larger than the sum of its proper divisors (500519456797).

1011001200003 is a wasteful number, since it uses less digits than its factorization.

1011001200003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343527539 (or 343527533 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 1011001200003 its reverse (3000021001101), we get a palindrome (4011022201104).

The spelling of 1011001200003 in words is "one trillion, eleven billion, one million, two hundred thousand, three".