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10231212211 = 118311206147
BaseRepresentation
bin10011000011101001…
…11110100010110011
3222102000211102122121
421201310332202303
5131423142242321
64411122215111
7511352604013
oct114164764263
928360742577
1010231212211
114380286190
121b964b4497
13c7088242c
146d0b4bc43
153ed330441
hex261d3e8b3

10231212211 has 8 divisors (see below), whose sum is σ = 11295797184. Its totient is φ = 9189039720.

The previous prime is 10231212203. The next prime is 10231212241. The reversal of 10231212211 is 11221213201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10231212211 - 23 = 10231212203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10231212241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5602161 + ... + 5603986.

It is an arithmetic number, because the mean of its divisors is an integer number (1411974648).

Almost surely, 210231212211 is an apocalyptic number.

10231212211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10231212211 is a deficient number, since it is larger than the sum of its proper divisors (1064584973).

10231212211 is a wasteful number, since it uses less digits than its factorization.

10231212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11206241.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 10231212211 its reverse (11221213201), we get a palindrome (21452425412).

The spelling of 10231212211 in words is "ten billion, two hundred thirty-one million, two hundred twelve thousand, two hundred eleven".

Divisors: 1 11 83 913 11206147 123267617 930110201 10231212211