1002100003843 has 2 divisors, whose sum is σ = 1002100003844. Its totient is φ = 1002100003842.

The previous prime is 1002100003837. The next prime is 1002100003859. The reversal of 1002100003843 is 3483000012001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1002100003843 - 2⁵ = 1002100003811 is a prime.

It is a super-2 number, since 2×1002100003843² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1002100003813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501050001921 + 501050001922.

It is an arithmetic number, because the mean of its divisors is an integer number (501050001922).

Almost surely, 2^{1002100003843} is an apocalyptic number.

1002100003843 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002100003843 is an equidigital number, since it uses as much as digits as its factorization.

1002100003843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1002100003843 its reverse (3483000012001), we get a palindrome (4485100015844).

The spelling of 1002100003843 in words is "one trillion, two billion, one hundred million, three thousand, eight hundred forty-three".