1002101111111 has 4 divisors (see below), whose sum is σ = 1061048235312. Its totient is φ = 943153986912.

The previous prime is 1002101111059. The next prime is 1002101111149. The reversal of 1002101111111 is 1111111012001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1002101111111 - 2⁶ = 1002101111047 is a prime.

It is a Duffinian number.

1002101111111 is a modest number, since divided by 1111111 gives 100210 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1002101111092 and 1002101111101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002101111161) 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, 29473562075 + ... + 29473562108.

It is an arithmetic number, because the mean of its divisors is an integer number (265262058828).

Almost surely, 2^{1002101111111} is an apocalyptic number.

1002101111111 is a deficient number, since it is larger than the sum of its proper divisors (58947124201).

1002101111111 is an equidigital number, since it uses as much as digits as its factorization.

1002101111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58947124200.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 1002101111111 its reverse (1111111012001), we get a palindrome (2113212123112).

The spelling of 1002101111111 in words is "one trillion, two billion, one hundred one million, one hundred eleven thousand, one hundred eleven".