1003121130213 has 6 divisors (see below), whose sum is σ = 1448952743654. Its totient is φ = 668747420136.

The previous prime is 1003121130191. The next prime is 1003121130227. The reversal of 1003121130213 is 3120311213001.

1003121130213 is a `hidden beast` number, since 10 + 0 + 312 + 1 + 130 + 213 = 666.

It can be written as a sum of positive squares in only one way, i.e., 881377359489 + 121743770724 = 938817^2 + 348918^2 .

It is not a de Polignac number, because 1003121130213 - 2⁶ = 1003121130149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003121130013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55728951670 + ... + 55728951687.

Almost surely, 2^{1003121130213} is an apocalyptic number.

It is an amenable number.

1003121130213 is a deficient number, since it is larger than the sum of its proper divisors (445831613441).

1003121130213 is a wasteful number, since it uses less digits than its factorization.

1003121130213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111457903363 (or 111457903360 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1003121130213 its reverse (3120311213001), we get a palindrome (4123432343214).

The spelling of 1003121130213 in words is "one trillion, three billion, one hundred twenty-one million, one hundred thirty thousand, two hundred thirteen".