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13130311230331 = 1753199244729927
BaseRepresentation
bin1011111100010010001110…
…0010010110001101111011
31201111020121222001220122121
42333010203202112031323
53210111334133332311
643531552014302111
72523430231650661
oct277044342261573
951436558056577
1013130311230331
114202596423879
1215808aa7b7937
1374324c1905b9
14335720988c31
1517b8399c6b71
hexbf12389637b

13130311230331 has 32 divisors (see below), whose sum is σ = 14242471833600. Its totient is φ = 12058509805056.

The previous prime is 13130311230329. The next prime is 13130311230341. The reversal of 13130311230331 is 13303211303131.

It is a cyclic number.

It is not a de Polignac number, because 13130311230331 - 21 = 13130311230329 is a prime.

It is a super-2 number, since 2×131303112303312 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13130311230296 and 13130311230305.

It is not an unprimeable number, because it can be changed into a prime (13130311230341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 438729690 + ... + 438759616.

It is an arithmetic number, because the mean of its divisors is an integer number (445077244800).

Almost surely, 213130311230331 is an apocalyptic number.

13130311230331 is a deficient number, since it is larger than the sum of its proper divisors (1112160603269).

13130311230331 is a wasteful number, since it uses less digits than its factorization.

13130311230331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32643.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 13130311230331 its reverse (13303211303131), we get a palindrome (26433522533462).

The spelling of 13130311230331 in words is "thirteen trillion, one hundred thirty billion, three hundred eleven million, two hundred thirty thousand, three hundred thirty-one".

Divisors: 1 17 53 199 901 2447 3383 10547 29927 41599 129691 179299 486953 508759 1586131 2204747 5955473 8278201 25808509 26964227 73231369 101243041 315640069 438744653 1244933273 3881262557 5365881173 14573042431 65981463469 247741721327 772371248843 13130311230331