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10212101031 = 311309457607
BaseRepresentation
bin10011000001011000…
…00100101110100111
3222100200212111001010
421200230010232213
5131403244213111
64405200433303
7511031266206
oct114054045647
928320774033
1010212101031
114370512720
121b90018833
13c69920742
146cc3b523d
153eb807aa6
hex260b04ba7

10212101031 has 8 divisors (see below), whose sum is σ = 14853965184. Its totient is φ = 6189152120.

The previous prime is 10212101027. The next prime is 10212101041. The reversal of 10212101031 is 13010121201.

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 10212101031 - 22 = 10212101027 is a prime.

It is a super-2 number, since 2×102121010312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10212100998 and 10212101016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212101021) 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, 154728771 + ... + 154728836.

It is an arithmetic number, because the mean of its divisors is an integer number (1856745648).

Almost surely, 210212101031 is an apocalyptic number.

10212101031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10212101031 is a deficient number, since it is larger than the sum of its proper divisors (4641864153).

10212101031 is a wasteful number, since it uses less digits than its factorization.

10212101031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309457621.

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

Adding to 10212101031 its reverse (13010121201), we get a palindrome (23222222232).

The spelling of 10212101031 in words is "ten billion, two hundred twelve million, one hundred one thousand, thirty-one".

Divisors: 1 3 11 33 309457607 928372821 3404033677 10212101031