1213302021003 has 16 divisors (see below), whose sum is σ = 1808511994240. Its totient is φ = 803905630632.

The previous prime is 1213302020951. The next prime is 1213302021007. The reversal of 1213302021003 is 3001202033121.

1213302021003 is a `hidden beast` number, since 121 + 330 + 2 + 0 + 210 + 0 + 3 = 666.

It is not a de Polignac number, because 1213302021003 - 2¹⁷ = 1213301889931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213302021007) 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, 137839501 + ... + 137848302.

It is an arithmetic number, because the mean of its divisors is an integer number (113031999640).

Almost surely, 2^{1213302021003} is an apocalyptic number.

1213302021003 is a deficient number, since it is larger than the sum of its proper divisors (595209973237).

1213302021003 is a wasteful number, since it uses less digits than its factorization.

1213302021003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275687975 (or 275687969 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1213302021003 its reverse (3001202033121), we get a palindrome (4214504054124).

The spelling of 1213302021003 in words is "one trillion, two hundred thirteen billion, three hundred two million, twenty-one thousand, three".