1000001099077 has 2 divisors, whose sum is σ = 1000001099078. Its totient is φ = 1000001099076.

The previous prime is 1000001098949. The next prime is 1000001099087. The reversal of 1000001099077 is 7709901000001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 566024503716 + 433976595361 = 752346^2 + 658769^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000001099077 - 2⁷ = 1000001098949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000001099087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500000549538 + 500000549539.

It is an arithmetic number, because the mean of its divisors is an integer number (500000549539).

Almost surely, 2^{1000001099077} is an apocalyptic number.

It is an amenable number.

1000001099077 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000001099077 is an equidigital number, since it uses as much as digits as its factorization.

1000001099077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3969, while the sum is 34.

Adding to 1000001099077 its reverse (7709901000001), we get a palindrome (8709902099078).

The spelling of 1000001099077 in words is "one trillion, one million, ninety-nine thousand, seventy-seven".