2101312086619 has 2 divisors, whose sum is σ = 2101312086620. Its totient is φ = 2101312086618.

The previous prime is 2101312086617. The next prime is 2101312086623. The reversal of 2101312086619 is 9166802131012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2101312086619 - 2¹ = 2101312086617 is a prime.

It is a super-2 number, since 2×2101312086619² (a number of 25 digits) contains 22 as substring.

Together with 2101312086617, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2101312086613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050656043309 + 1050656043310.

It is an arithmetic number, because the mean of its divisors is an integer number (1050656043310).

Almost surely, 2^{2101312086619} is an apocalyptic number.

2101312086619 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101312086619 is an equidigital number, since it uses as much as digits as its factorization.

2101312086619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 2101312086619 in words is "two trillion, one hundred one billion, three hundred twelve million, eighty-six thousand, six hundred nineteen".