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13031213212311 = 371091962959069
BaseRepresentation
bin1011110110100001000011…
…0101011010001010010111
31201010202211122200000001220
42331220100311122022113
53202000411040243221
643414242352021423
72513321416464360
oct275502065321227
951122748600056
1013031213212311
114174563154128
121565652b31873
13736ab84bc708
143309dd63cb67
15178e89a5b0c6
hexbda10d5a297

13031213212311 has 32 divisors (see below), whose sum is σ = 19877688230400. Its totient is φ = 7438683688320.

The previous prime is 13031213212267. The next prime is 13031213212319. The reversal of 13031213212311 is 11321231213031.

13031213212311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13031213212311 - 222 = 13031209018007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031213212319) 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, 220580485 + ... + 220639553.

It is an arithmetic number, because the mean of its divisors is an integer number (621177757200).

Almost surely, 213031213212311 is an apocalyptic number.

13031213212311 is a deficient number, since it is larger than the sum of its proper divisors (6846475018089).

13031213212311 is a wasteful number, since it uses less digits than its factorization.

13031213212311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69799.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 13031213212311 its reverse (11321231213031), we get a palindrome (24352444425342).

The spelling of 13031213212311 in words is "thirteen trillion, thirty-one billion, two hundred thirteen million, two hundred twelve thousand, three hundred eleven".

Divisors: 1 3 7 21 1091 3273 7637 9629 22911 28887 59069 67403 177207 202209 413483 1240449 10505239 31515717 64444279 73536673 193332837 220610019 451109953 568775401 1353329859 1706326203 3981427807 11944283421 620533962491 1861601887473 4343737737437 13031213212311