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20010122310301 = 171177066018253
BaseRepresentation
bin1001000110010111110000…
…01110110111001010011101
32121211221121211101010222021
410203023320032313022131
510110321212302412201
6110320305010220141
74133453325156424
oct443137016671235
977757554333867
1020010122310301
116415277421642
1222b2119584651
13b21c3c426866
144d26d073c2bb
1524a798853ea1
hex1232f83b729d

20010122310301 has 4 divisors (see below), whose sum is σ = 21187188328572. Its totient is φ = 18833056292032.

The previous prime is 20010122310221. The next prime is 20010122310319. The reversal of 20010122310301 is 10301322101002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7784267400900 + 12225854909401 = 2790030^2 + 3496549^2 .

It is a cyclic number.

It is not a de Polignac number, because 20010122310301 - 225 = 20010088755869 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 (20010122310331) 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, 588533009110 + ... + 588533009143.

It is an arithmetic number, because the mean of its divisors is an integer number (5296797082143).

Almost surely, 220010122310301 is an apocalyptic number.

It is an amenable number.

20010122310301 is a deficient number, since it is larger than the sum of its proper divisors (1177066018271).

20010122310301 is a wasteful number, since it uses less digits than its factorization.

20010122310301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177066018270.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20010122310301 its reverse (10301322101002), we get a palindrome (30311444411303).

The spelling of 20010122310301 in words is "twenty trillion, ten billion, one hundred twenty-two million, three hundred ten thousand, three hundred one".

Divisors: 1 17 1177066018253 20010122310301