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13031230322031 = 353291728096477
BaseRepresentation
bin1011110110100001000111…
…0110101011010101101111
31201010202212211212021012020
42331220101312223111233
53202000424430301111
643414244202441223
72513322015065055
oct275502166532557
951122784767166
1013031230322031
11417457187a999
121565658803213
13736abbc003cc
14330a01a141d5
15178e8b2da906
hexbda11dab56f

13031230322031 has 16 divisors (see below), whose sum is σ = 17708872925664. Its totient is φ = 8520649697664.

The previous prime is 13031230322027. The next prime is 13031230322041. The reversal of 13031230322031 is 13022303213031.

It is not a de Polignac number, because 13031230322031 - 22 = 13031230322027 is a prime.

It is a super-2 number, since 2×130312303220312 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13031230321992 and 13031230322010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031230322021) 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, 13584436 + ... + 14512041.

It is an arithmetic number, because the mean of its divisors is an integer number (1106804557854).

Almost surely, 213031230322031 is an apocalyptic number.

13031230322031 is a deficient number, since it is larger than the sum of its proper divisors (4677642603633).

13031230322031 is a wasteful number, since it uses less digits than its factorization.

13031230322031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28099450.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 13031230322031 its reverse (13022303213031), we get a palindrome (26053533535062).

The spelling of 13031230322031 in words is "thirteen trillion, thirty-one billion, two hundred thirty million, three hundred twenty-two thousand, thirty-one".

Divisors: 1 3 53 159 2917 8751 154601 463803 28096477 84289431 1489113281 4467339843 81957423409 245872270227 4343743440677 13031230322031