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20010102113233 = 31645487164943
BaseRepresentation
bin1001000110010111101110…
…00001110100001111010001
32121211221120102101000210201
410203023313001310033101
510110321142120110413
6110320303005255201
74133452661410021
oct443136701641721
977757512330721
1020010102113233
116415266a87251
1222b2112864501
13b21c381a482b
144d26cbba1a81
1524a796bb49dd
hex1232f70743d1

20010102113233 has 4 divisors (see below), whose sum is σ = 20655589278208. Its totient is φ = 19364614948260.

The previous prime is 20010102113201. The next prime is 20010102113279. The reversal of 20010102113233 is 33231120101002.

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 20010102113233 - 25 = 20010102113201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20010102113233.

It is not an unprimeable number, because it can be changed into a prime (20010102113293) 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, 322743582441 + ... + 322743582502.

It is an arithmetic number, because the mean of its divisors is an integer number (5163897319552).

Almost surely, 220010102113233 is an apocalyptic number.

It is an amenable number.

20010102113233 is a deficient number, since it is larger than the sum of its proper divisors (645487164975).

20010102113233 is an equidigital number, since it uses as much as digits as its factorization.

20010102113233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645487164974.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20010102113233 its reverse (33231120101002), we get a palindrome (53241222214235).

The spelling of 20010102113233 in words is "twenty trillion, ten billion, one hundred two million, one hundred thirteen thousand, two hundred thirty-three".

Divisors: 1 31 645487164943 20010102113233