1009997401099 has 2 divisors, whose sum is σ = 1009997401100. Its totient is φ = 1009997401098.

The previous prime is 1009997401097. The next prime is 1009997401103. The reversal of 1009997401099 is 9901047999001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1009997401099 - 2¹ = 1009997401097 is a prime.

Together with 1009997401097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1009997401097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504998700549 + 504998700550.

It is an arithmetic number, because the mean of its divisors is an integer number (504998700550).

Almost surely, 2^{1009997401099} is an apocalyptic number.

1009997401099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1009997401099 is an equidigital number, since it uses as much as digits as its factorization.

1009997401099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1653372, while the sum is 58.

The spelling of 1009997401099 in words is "one trillion, nine billion, nine hundred ninety-seven million, four hundred one thousand, ninety-nine".