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212323133211031 = 1937617057421037
BaseRepresentation
bin110000010001101101010100…
…111011101100000110010111
31000211202220010012212001212201
4300101231110323230012113
5210312200234100223111
62031323522325425331
762502561113315503
oct6021552473540627
91024686105761781
10212323133211031
116171a80a499277
121b99178b86b247
139161ca733a6cb
143a606ccbcb303
15198302a4e36c1
hexc11b54eec197

212323133211031 has 16 divisors (see below), whose sum is σ = 223589669988960. Its totient is φ = 201065775482880.

The previous prime is 212323133210989. The next prime is 212323133211037. The reversal of 212323133211031 is 130112331323212.

212323133211031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 212323133211031 - 213 = 212323133202839 is a prime.

It is a super-2 number, since 2×2123231332110312 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212323133211037) 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, 504075645 + ... + 504496681.

It is an arithmetic number, because the mean of its divisors is an integer number (13974354374310).

Almost surely, 2212323133211031 is an apocalyptic number.

212323133211031 is a deficient number, since it is larger than the sum of its proper divisors (11266536777929).

212323133211031 is a wasteful number, since it uses less digits than its factorization.

212323133211031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431874.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 212323133211031 its reverse (130112331323212), we get a palindrome (342435464534243).

The spelling of 212323133211031 in words is "two hundred twelve trillion, three hundred twenty-three billion, one hundred thirty-three million, two hundred eleven thousand, thirty-one".

Divisors: 1 19 3761 7057 71459 134083 421037 7999703 26541377 504286163 1583520157 2971258109 30086882983 56453904071 11174901747949 212323133211031