20002003831409 has 2 divisors, whose sum is σ = 20002003831410. Its totient is φ = 20002003831408.

The previous prime is 20002003831367. The next prime is 20002003831451. The reversal of 20002003831409 is 90413830020002.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (20002003831367) and next prime (20002003831451).

It can be written as a sum of positive squares in only one way, i.e., 19153725991009 + 848277840400 = 4376497^2 + 921020^2 .

It is a cyclic number.

It is not a de Polignac number, because 20002003831409 - 2³⁶ = 19933284354673 is a prime.

It is not a weakly prime, because it can be changed into another prime (20002003831009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001001915704 + 10001001915705.

It is an arithmetic number, because the mean of its divisors is an integer number (10001001915705).

Almost surely, 2^{20002003831409} is an apocalyptic number.

It is an amenable number.

20002003831409 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002003831409 is an equidigital number, since it uses as much as digits as its factorization.

20002003831409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 20002003831409 in words is "twenty trillion, two billion, three million, eight hundred thirty-one thousand, four hundred nine".