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231003212022031 = 5311992136345187
BaseRepresentation
bin110100100001100010100000…
…011001010000000100001111
31010021220200200000201212102111
4310201202200121100010033
5220234224034234201111
62135145224404004451
766441300640343551
oct6441424031200417
91107820600655374
10231003212022031
1167671a03a43a59
1221aa9b78390727
139bb86812844c7
144108887c514d1
151ba8dcc5a4a21
hexd218a065010f

231003212022031 has 8 divisors (see below), whose sum is σ = 235363732308144. Its totient is φ = 226642764666240.

The previous prime is 231003212022017. The next prime is 231003212022083. The reversal of 231003212022031 is 130220212300132.

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 231003212022031 - 25 = 231003212021999 is a prime.

It is a super-2 number, since 2×2310032120220312 (a number of 30 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 = 231003212021993 and 231003212022011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231003212052031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11816781 + ... + 24528406.

It is an arithmetic number, because the mean of its divisors is an integer number (29420466538518).

Almost surely, 2231003212022031 is an apocalyptic number.

231003212022031 is a deficient number, since it is larger than the sum of its proper divisors (4360520286113).

231003212022031 is a wasteful number, since it uses less digits than its factorization.

231003212022031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36465161.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 231003212022031 its reverse (130220212300132), we get a palindrome (361223424322163).

The spelling of 231003212022031 in words is "two hundred thirty-one trillion, three billion, two hundred twelve million, twenty-two thousand, thirty-one".

Divisors: 1 53 119921 6355813 36345187 1926294911 4358551170227 231003212022031