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231211000313233 = 17312641716607887
BaseRepresentation
bin110100100100100100000001…
…100010101011010110010001
31010022122120000011001201221121
4310210210001202223112101
5220301130112040010413
62135424511152122241
766462305061566113
oct6444440142532621
91108576004051847
10231211000313233
1167742042022656
1221b222a8236381
139c02146cbcbc5
14411495a44b3b3
151bae4de655b8d
hexd249018ab591

231211000313233 has 16 divisors (see below), whose sum is σ = 252718378665984. Its totient is φ = 210582679956480.

The previous prime is 231211000313231. The next prime is 231211000313257. The reversal of 231211000313233 is 332313000112132.

It is a cyclic number.

It is not a de Polignac number, because 231211000313233 - 21 = 231211000313231 is a prime.

It is a super-2 number, since 2×2312110003132332 (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231211000313198 and 231211000313207.

It is not an unprimeable number, because it can be changed into a prime (231211000313231) 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 in 15 ways as a sum of consecutive naturals, for example, 5617816 + ... + 22225702.

It is an arithmetic number, because the mean of its divisors is an integer number (15794898666624).

Almost surely, 2231211000313233 is an apocalyptic number.

It is an amenable number.

231211000313233 is a deficient number, since it is larger than the sum of its proper divisors (21507378352751).

231211000313233 is a wasteful number, since it uses less digits than its factorization.

231211000313233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16634352.

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

Adding to 231211000313233 its reverse (332313000112132), we get a palindrome (563524000425365).

The spelling of 231211000313233 in words is "two hundred thirty-one trillion, two hundred eleven billion, three hundred thirteen thousand, two hundred thirty-three".

Divisors: 1 17 31 527 26417 449089 818927 13921759 16607887 282334079 514844497 8752356449 438730550879 7458419364943 13600647077249 231211000313233