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20230131123213 = 3111976123423853
BaseRepresentation
bin1001001100110001100011…
…10001111000010000001101
32122121222111121202211202120
410212120301301320100031
510122422302031420323
6111005332142443153
74155402336214104
oct446306161702015
978558447684676
1020230131123213
11649a606691060
122328899b934b9
13b39901bb7aab
144dd201d5b03b
152513736d55e3
hex126631c7840d

20230131123213 has 32 divisors (see below), whose sum is σ = 30974843420160. Its totient is φ = 11615206299840.

The previous prime is 20230131123173. The next prime is 20230131123229. The reversal of 20230131123213 is 31232113103202.

It is not a de Polignac number, because 20230131123213 - 210 = 20230131122189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20230131125213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47517195 + ... + 47941047.

It is an arithmetic number, because the mean of its divisors is an integer number (967963856880).

Almost surely, 220230131123213 is an apocalyptic number.

It is an amenable number.

20230131123213 is a deficient number, since it is larger than the sum of its proper divisors (10744712296947).

20230131123213 is a wasteful number, since it uses less digits than its factorization.

20230131123213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500009.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 20230131123213 its reverse (31232113103202), we get a palindrome (51462244226415).

The spelling of 20230131123213 in words is "twenty trillion, two hundred thirty billion, one hundred thirty-one million, one hundred twenty-three thousand, two hundred thirteen".

Divisors: 1 3 11 19 33 57 209 627 76123 228369 423853 837353 1271559 1446337 2512059 4339011 4662383 8053207 13987149 15909707 24159621 47729121 88585277 265755831 32264961919 96794885757 354914581109 613034276461 1064743743327 1839102829383 6743377041071 20230131123213