102021110011 has 4 divisors (see below), whose sum is σ = 102092504800. Its totient is φ = 101949715224.

The previous prime is 102021110003. The next prime is 102021110089. The reversal of 102021110011 is 110011120201.

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 102021110011 - 2³ = 102021110003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102021110011.

It is not an unprimeable number, because it can be changed into a prime (102021110911) 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, 35695251 + ... + 35698108.

It is an arithmetic number, because the mean of its divisors is an integer number (25523126200).

Almost surely, 2^102021110011 is an apocalyptic number.

102021110011 is a deficient number, since it is larger than the sum of its proper divisors (71394789).

102021110011 is an equidigital number, since it uses as much as digits as its factorization.

102021110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71394788.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 102021110011 its reverse (110011120201), we get a palindrome (212032230212).

The spelling of 102021110011 in words is "one hundred two billion, twenty-one million, one hundred ten thousand, eleven".