101000999999 has 4 divisors (see below), whose sum is σ = 101981592336. Its totient is φ = 100020407664.

The previous prime is 101000999951. The next prime is 101001000017. The reversal of 101000999999 is 999999000101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999999000101 = 257 ⋅3891046693.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101000999999 is a prime.

It is a Duffinian number.

101000999999 is a modest number, since divided by 999999 gives 101000 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101000999299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490296014 + ... + 490296219.

It is an arithmetic number, because the mean of its divisors is an integer number (25495398084).

Almost surely, 2^101000999999 is an apocalyptic number.

101000999999 is a deficient number, since it is larger than the sum of its proper divisors (980592337).

101000999999 is an equidigital number, since it uses as much as digits as its factorization.

101000999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980592336.

The product of its (nonzero) digits is 531441, while the sum is 56.

It can be divided in two parts, 101000999 and 999, that multiplied together give a palindrome (100899998001).

The spelling of 101000999999 in words is "one hundred one billion, nine hundred ninety-nine thousand, nine hundred ninety-nine".