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212232031133231 = 19110321523470521
BaseRepresentation
bin110000010000011000011110…
…110100110101111000101111
31000211110011222011020000020002
4300100120132310311320233
5210304202144432230411
62031214014340014515
762463154402403234
oct6020303664657057
91024404864200202
10212232031133231
116169510a77388a
121b977ba599143b
1391565190baab5
143a5a1297ad78b
15198099752033b
hexc1061ed35e2f

212232031133231 has 16 divisors (see below), whose sum is σ = 223615542858240. Its totient is φ = 200869877643840.

The previous prime is 212232031133219. The next prime is 212232031133233. The reversal of 212232031133231 is 132331130232212.

212232031133231 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 212232031133231 - 222 = 212232026938927 is a prime.

It is a super-2 number, since 2×2122320311332312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212232031133194 and 212232031133203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212232031133233) 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, 450822251 + ... + 451292771.

It is an arithmetic number, because the mean of its divisors is an integer number (13975971428640).

Almost surely, 2212232031133231 is an apocalyptic number.

212232031133231 is a deficient number, since it is larger than the sum of its proper divisors (11383511725009).

212232031133231 is a wasteful number, since it uses less digits than its factorization.

212232031133231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493166.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 212232031133231 its reverse (132331130232212), we get a palindrome (344563161365443).

The spelling of 212232031133231 in words is "two hundred twelve trillion, two hundred thirty-two billion, thirty-one million, one hundred thirty-three thousand, two hundred thirty-one".

Divisors: 1 19 1103 20957 21523 408937 470521 8939899 23739869 451057511 518984663 9860708597 10127023483 192413446177 11170106901749 212232031133231