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2031211212301 = 19106905853279
BaseRepresentation
bin11101100011101101100…
…111110110111000001101
321012011220121020201021001
4131203231213312320031
5231234410032243201
64153043041340301
7266515210301065
oct35435547667015
97164817221231
102031211212301
11713482859617
122897b4637691
1311970884822b
147044db063a5
1537c83109301
hex1d8ed9f6e0d

2031211212301 has 4 divisors (see below), whose sum is σ = 2138117065600. Its totient is φ = 1924305359004.

The previous prime is 2031211212259. The next prime is 2031211212341. The reversal of 2031211212301 is 1032121121302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2031211212301 - 225 = 2031177657869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 106905853279 = 2031211212301 / (2 + 0 + 3 + 1 + 2 + 1 + 1 + 2 + 1 + 2 + 3 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031211212341) 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, 53452926621 + ... + 53452926658.

It is an arithmetic number, because the mean of its divisors is an integer number (534529266400).

Almost surely, 22031211212301 is an apocalyptic number.

It is an amenable number.

2031211212301 is a deficient number, since it is larger than the sum of its proper divisors (106905853299).

2031211212301 is a wasteful number, since it uses less digits than its factorization.

2031211212301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106905853298.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2031211212301 its reverse (1032121121302), we get a palindrome (3063332333603).

Subtracting from 2031211212301 its reverse (1032121121302), we obtain a palindrome (999090090999).

The spelling of 2031211212301 in words is "two trillion, thirty-one billion, two hundred eleven million, two hundred twelve thousand, three hundred one".

Divisors: 1 19 106905853279 2031211212301