1011212005203 has 8 divisors (see below), whose sum is σ = 1498091859600. Its totient is φ = 674141336784.

The previous prime is 1011212005189. The next prime is 1011212005213. The reversal of 1011212005203 is 3025002121101.

1011212005203 is a `hidden beast` number, since 1 + 0 + 1 + 121 + 20 + 0 + 520 + 3 = 666.

It is not a de Polignac number, because 1011212005203 - 2¹⁴ = 1011211988819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011212005213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18726148218 + ... + 18726148271.

It is an arithmetic number, because the mean of its divisors is an integer number (187261482450).

Almost surely, 2^{1011212005203} is an apocalyptic number.

1011212005203 is a deficient number, since it is larger than the sum of its proper divisors (486879854397).

1011212005203 is an equidigital number, since it uses as much as digits as its factorization.

1011212005203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37452296498 (or 37452296492 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 1011212005203 its reverse (3025002121101), we get a palindrome (4036214126304).

The spelling of 1011212005203 in words is "one trillion, eleven billion, two hundred twelve million, five thousand, two hundred three".