2101030101 has 12 divisors (see below), whose sum is σ = 3035273280. Its totient is φ = 1400478120.

The previous prime is 2101030091. The next prime is 2101030103. The reversal of 2101030101 is 1010301012.

It is not a de Polignac number, because 2101030101 - 2⁵ = 2101030069 is a prime.

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

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101030103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68980 + ... + 94658.

It is an arithmetic number, because the mean of its divisors is an integer number (252939440).

Almost surely, 2^2101030101 is an apocalyptic number.

It is an amenable number.

2101030101 is a deficient number, since it is larger than the sum of its proper divisors (934243179).

2101030101 is a wasteful number, since it uses less digits than its factorization.

2101030101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34776 (or 34773 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 2101030101 is about 45836.9948949536. The cubic root of 2101030101 is about 1280.7885158207.

Adding to 2101030101 its reverse (1010301012), we get a palindrome (3111331113).

It can be divided in two parts, 2 and 101030101, that multiplied together give a palindrome (202060202).

The spelling of 2101030101 in words is "two billion, one hundred one million, thirty thousand, one hundred one".