102110021001011 has 4 divisors (see below), whose sum is σ = 102110287018152. Its totient is φ = 102109754983872.

The previous prime is 102110021001007. The next prime is 102110021001061. The reversal of 102110021001011 is 110100120011201.

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 102110021001011 - 2² = 102110021001007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102110021000983 and 102110021001001.

It is not an unprimeable number, because it can be changed into a prime (102110021001061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132431966 + ... + 133200771.

It is an arithmetic number, because the mean of its divisors is an integer number (25527571754538).

Almost surely, 2^{102110021001011} is an apocalyptic number.

102110021001011 is a deficient number, since it is larger than the sum of its proper divisors (266017141).

102110021001011 is an equidigital number, since it uses as much as digits as its factorization.

102110021001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266017140.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 102110021001011 its reverse (110100120011201), we get a palindrome (212210141012212).

The spelling of 102110021001011 in words is "one hundred two trillion, one hundred ten billion, twenty-one million, one thousand, eleven".