1002020110101 has 48 divisors (see below), whose sum is σ = 1471876660800. Its totient is φ = 656783536896.

The previous prime is 1002020110099. The next prime is 1002020110109. The reversal of 1002020110101 is 1010110202001.

It is a happy number.

It is not a de Polignac number, because 1002020110101 - 2¹ = 1002020110099 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002020110109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 177063810 + ... + 177069468.

It is an arithmetic number, because the mean of its divisors is an integer number (30664097100).

Almost surely, 2^{1002020110101} is an apocalyptic number.

It is an amenable number.

1002020110101 is a deficient number, since it is larger than the sum of its proper divisors (469856550699).

1002020110101 is a wasteful number, since it uses less digits than its factorization.

1002020110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6850 (or 6847 counting only the distinct ones).

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

Adding to 1002020110101 its reverse (1010110202001), we get a palindrome (2012130312102).

The spelling of 1002020110101 in words is "one trillion, two billion, twenty million, one hundred ten thousand, one hundred one".