2051513989099 has 2 divisors, whose sum is σ = 2051513989100. Its totient is φ = 2051513989098.

The previous prime is 2051513989033. The next prime is 2051513989111. The reversal of 2051513989099 is 9909893151502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2051513989099 - 2¹³ = 2051513980907 is a prime.

It is not a weakly prime, because it can be changed into another prime (2051513989199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025756994549 + 1025756994550.

It is an arithmetic number, because the mean of its divisors is an integer number (1025756994550).

Almost surely, 2^{2051513989099} is an apocalyptic number.

2051513989099 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051513989099 is an equidigital number, since it uses as much as digits as its factorization.

2051513989099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7873200, while the sum is 61.

The spelling of 2051513989099 in words is "two trillion, fifty-one billion, five hundred thirteen million, nine hundred eighty-nine thousand, ninety-nine".