2102110009939 has 2 divisors, whose sum is σ = 2102110009940. Its totient is φ = 2102110009938.

The previous prime is 2102110009913. The next prime is 2102110010003. The reversal of 2102110009939 is 9399000112012.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2102110009939 - 2³⁵ = 2067750271571 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2102110009898 and 2102110009907.

It is not a weakly prime, because it can be changed into another prime (2102110009339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051055004969 + 1051055004970.

It is an arithmetic number, because the mean of its divisors is an integer number (1051055004970).

Almost surely, 2^{2102110009939} is an apocalyptic number.

2102110009939 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102110009939 is an equidigital number, since it uses as much as digits as its factorization.

2102110009939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 37.

The spelling of 2102110009939 in words is "two trillion, one hundred two billion, one hundred ten million, nine thousand, nine hundred thirty-nine".