102001010010101 has 4 divisors (see below), whose sum is σ = 103229937841632. Its totient is φ = 100772082178572.

The previous prime is 102001010010091. The next prime is 102001010010143. The reversal of 102001010010101 is 101010010100201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102001010010101 - 2⁶ = 102001010010037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102001010010181) 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, 614463915641 + ... + 614463915806.

It is an arithmetic number, because the mean of its divisors is an integer number (25807484460408).

Almost surely, 2^{102001010010101} is an apocalyptic number.

It is an amenable number.

102001010010101 is a deficient number, since it is larger than the sum of its proper divisors (1228927831531).

102001010010101 is an equidigital number, since it uses as much as digits as its factorization.

102001010010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228927831530.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 102001010010101 its reverse (101010010100201), we get a palindrome (203011020110302).

The spelling of 102001010010101 in words is "one hundred two trillion, one billion, ten million, ten thousand, one hundred one".