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20201233101 = 373725999013
BaseRepresentation
bin10010110100000101…
…100101101011001101
31221010212011222011120
4102310011211223031
5312333003424401
613140314311153
71313414435220
oct226405455315
957125158146
1020201233101
118627084475
123ab94284b9
131b9c2a428a
14d98d095b7
157d376a836
hex4b4165acd

20201233101 has 16 divisors (see below), whose sum is σ = 31614801024. Its totient is φ = 11231573184.

The previous prime is 20201233057. The next prime is 20201233103. The reversal of 20201233101 is 10133210202.

It is not a de Polignac number, because 20201233101 - 27 = 20201232973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201233103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12998730 + ... + 13000283.

It is an arithmetic number, because the mean of its divisors is an integer number (1975925064).

Almost surely, 220201233101 is an apocalyptic number.

20201233101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20201233101 is a deficient number, since it is larger than the sum of its proper divisors (11413567923).

20201233101 is a wasteful number, since it uses less digits than its factorization.

20201233101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25999060.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20201233101 its reverse (10133210202), we get a palindrome (30334443303).

The spelling of 20201233101 in words is "twenty billion, two hundred one million, two hundred thirty-three thousand, one hundred one".

Divisors: 1 3 7 21 37 111 259 777 25999013 77997039 181993091 545979273 961963481 2885890443 6733744367 20201233101