20130001101 has 36 divisors (see below), whose sum is σ = 34990242300. Its totient is φ = 11106200448.

The previous prime is 20130001033. The next prime is 20130001103. The reversal of 20130001101 is 10110003102.

It can be written as a sum of positive squares in 2 ways, for example, as 3693479076 + 16436522025 = 60774^2 + 128205^2 .

It is not a de Polignac number, because 20130001101 - 2¹⁵ = 20129968333 is a prime.

It is a super-2 number, since 2×20130001101² (a number of 21 digits) contains 22 as substring.

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 (20130001103) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 774216 + ... + 799793.

It is an arithmetic number, because the mean of its divisors is an integer number (971951175).

Almost surely, 2^20130001101 is an apocalyptic number.

20130001101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20130001101 is a deficient number, since it is larger than the sum of its proper divisors (14860241199).

20130001101 is a wasteful number, since it uses less digits than its factorization.

20130001101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574058 (or 1574048 counting only the distinct ones).

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

Adding to 20130001101 its reverse (10110003102), we get a palindrome (30240004203).

The spelling of 20130001101 in words is "twenty billion, one hundred thirty million, one thousand, one hundred one".