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10211011231 is a prime number
BaseRepresentation
bin10011000001001111…
…11010101010011111
3222100121211010010011
421200213322222133
5131403004324411
64405121224051
7511016110021
oct114047725237
928317733104
1010211011231
11436a938963
121b8b792027
13c6962b6a5
146cc1b0011
153eb68ec21
hex2609faa9f

10211011231 has 2 divisors, whose sum is σ = 10211011232. Its totient is φ = 10211011230.

The previous prime is 10211011219. The next prime is 10211011259. The reversal of 10211011231 is 13211011201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10211011231 - 217 = 10210880159 is a prime.

It is a super-2 number, since 2×102110112312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10211015231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5105505615 + 5105505616.

It is an arithmetic number, because the mean of its divisors is an integer number (5105505616).

Almost surely, 210211011231 is an apocalyptic number.

10211011231 is a deficient number, since it is larger than the sum of its proper divisors (1).

10211011231 is an equidigital number, since it uses as much as digits as its factorization.

10211011231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 10211011231 its reverse (13211011201), we get a palindrome (23422022432).

The spelling of 10211011231 in words is "ten billion, two hundred eleven million, eleven thousand, two hundred thirty-one".