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22131123313 = 132131798871
BaseRepresentation
bin10100100111000111…
…100010010001110001
32010010100121112211211
4110213013202101301
5330311031421223
614100014440121
71412300305255
oct244707422161
963110545754
1022131123313
119427495562
124357803041
132119071b50
1410dd354265
15897dced0d
hex5271e2471

22131123313 has 8 divisors (see below), whose sum is σ = 23844731456. Its totient is φ = 20419117200.

The previous prime is 22131123283. The next prime is 22131123317. The reversal of 22131123313 is 31332113122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22131123313 - 25 = 22131123281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22131123317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371733 + ... + 427138.

It is an arithmetic number, because the mean of its divisors is an integer number (2980591432).

Almost surely, 222131123313 is an apocalyptic number.

It is an amenable number.

22131123313 is a deficient number, since it is larger than the sum of its proper divisors (1713608143).

22131123313 is a wasteful number, since it uses less digits than its factorization.

22131123313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801015.

The product of its digits is 648, while the sum is 22.

Adding to 22131123313 its reverse (31332113122), we get a palindrome (53463236435).

The spelling of 22131123313 in words is "twenty-two billion, one hundred thirty-one million, one hundred twenty-three thousand, three hundred thirteen".

Divisors: 1 13 2131 27703 798871 10385323 1702394101 22131123313