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20030020012131 = 382110937440409
BaseRepresentation
bin1001000110111100110100…
…01110100100100001100011
32121220211222112102010111220
410203132122032210201203
510111132440110342011
6110333355243110123
74135056365640063
oct443363216444143
977824875363456
1020030020012131
11642275812a518
1222b5b51212343
13b23a9086491c
144d365b1d53a3
1524b060614506
hex12379a3a4863

20030020012131 has 16 divisors (see below), whose sum is σ = 26763690479520. Its totient is φ = 13324877879040.

The previous prime is 20030020012127. The next prime is 20030020012217. The reversal of 20030020012131 is 13121002003002.

It is not a de Polignac number, because 20030020012131 - 22 = 20030020012127 is a prime.

It is a super-2 number, since 2×200300200121312 (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20030020012131.

It is not an unprimeable number, because it can be changed into a prime (20030020012111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1028146 + ... + 6412263.

It is an arithmetic number, because the mean of its divisors is an integer number (1672730654970).

Almost surely, 220030020012131 is an apocalyptic number.

20030020012131 is a deficient number, since it is larger than the sum of its proper divisors (6733670467389).

20030020012131 is a wasteful number, since it uses less digits than its factorization.

20030020012131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7442326.

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

Adding to 20030020012131 its reverse (13121002003002), we get a palindrome (33151022015133).

The spelling of 20030020012131 in words is "twenty trillion, thirty billion, twenty million, twelve thousand, one hundred thirty-one".

Divisors: 1 3 821 1093 2463 3279 897353 2692059 7440409 22321227 6108575789 8132367037 18325727367 24397101111 6676673337377 20030020012131