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212330030131231 = 1929493178149251
BaseRepresentation
bin110000010001110011110000…
…000001010110100000011111
31000211210112220212121220202121
4300101303300001112200133
5210312303400203144411
62031331022542403411
762503224041214535
oct6021636001264037
91024715825556677
10212330030131231
1161722729638521
121b992b95590567
13916283619208c
143a60b84b94155
1519832d0c4a571
hexc11cf005681f

212330030131231 has 16 divisors (see below), whose sum is σ = 231259266518400. Its totient is φ = 194179004460000.

The previous prime is 212330030131217. The next prime is 212330030131249. The reversal of 212330030131231 is 132131030033212.

It is not a de Polignac number, because 212330030131231 - 217 = 212330030000159 is a prime.

It is a super-2 number, since 2×2123300301312312 (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 = 212330030131196 and 212330030131205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212330030138231) 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, 36357645 + ... + 41791606.

It is an arithmetic number, because the mean of its divisors is an integer number (14453704157400).

Almost surely, 2212330030131231 is an apocalyptic number.

212330030131231 is a deficient number, since it is larger than the sum of its proper divisors (18929236387169).

212330030131231 is a wasteful number, since it uses less digits than its factorization.

212330030131231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78154230.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 212330030131231 its reverse (132131030033212), we get a palindrome (344461060164443).

The spelling of 212330030131231 in words is "two hundred twelve trillion, three hundred thirty billion, thirty million, one hundred thirty-one thousand, two hundred thirty-one".

Divisors: 1 19 29 551 4931 93689 142999 2716981 78149251 1484835769 2266328279 43060237301 385353956681 7321725176939 11175264743749 212330030131231