1101000999869 has 2 divisors, whose sum is σ = 1101000999870. Its totient is φ = 1101000999868.

The previous prime is 1101000999841. The next prime is 1101000999877. The reversal of 1101000999869 is 9689990001011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1089545578969 + 11455420900 = 1043813^2 + 107030^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101000999869 - 2⁸ = 1101000999613 is a prime.

It is a super-2 number, since 2×1101000999869² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1101000999869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101000999809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550500499934 + 550500499935.

It is an arithmetic number, because the mean of its divisors is an integer number (550500499935).

Almost surely, 2^{1101000999869} is an apocalyptic number.

It is an amenable number.

1101000999869 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101000999869 is an equidigital number, since it uses as much as digits as its factorization.

1101000999869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 314928, while the sum is 53.

The spelling of 1101000999869 in words is "one trillion, one hundred one billion, nine hundred ninety-nine thousand, eight hundred sixty-nine".