102102011001 has 16 divisors (see below), whose sum is σ = 153176953600. Its totient is φ = 67206385584.

The previous prime is 102102010957. The next prime is 102102011021. The reversal of 102102011001 is 100110201201.

It is a happy number.

It is not a de Polignac number, because 102102011001 - 2²¹ = 102099913849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102102011021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23931766 + ... + 23936031.

It is an arithmetic number, because the mean of its divisors is an integer number (9573559600).

Almost surely, 2^102102011001 is an apocalyptic number.

It is an amenable number.

102102011001 is a deficient number, since it is larger than the sum of its proper divisors (51074942599).

102102011001 is an equidigital number, since it uses as much as digits as its factorization.

102102011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47867885 (or 47867879 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 102102011001 its reverse (100110201201), we get a palindrome (202212212202).

The spelling of 102102011001 in words is "one hundred two billion, one hundred two million, eleven thousand, one".