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212001031131013 = 2310318389330957
BaseRepresentation
bin110000001101000001010110…
…001001110000111110000101
31000210122002201100222001012101
4300031001112021300332011
5210241411102432143023
62030515532412152101
762440366116650065
oct6015012611607605
91023562640861171
10212001031131013
1161606150244143
121b93b278468631
13913a7c4498657
143a4cc945353a5
1519799777901ad
hexc0d056270f85

212001031131013 has 8 divisors (see below), whose sum is σ = 221220613686528. Its totient is φ = 202781627443824.

The previous prime is 212001031130899. The next prime is 212001031131067. The reversal of 212001031131013 is 310131130100212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-212001031131013 is a prime.

It is a super-2 number, since 2×2120010311310132 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212001031135013) 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, 42292270 + ... + 47038687.

It is an arithmetic number, because the mean of its divisors is an integer number (27652576710816).

Almost surely, 2212001031131013 is an apocalyptic number.

212001031131013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

212001031131013 is a deficient number, since it is larger than the sum of its proper divisors (9219582555515).

212001031131013 is a wasteful number, since it uses less digits than its factorization.

212001031131013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89434163.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 212001031131013 its reverse (310131130100212), we get a palindrome (522132161231225).

The spelling of 212001031131013 in words is "two hundred twelve trillion, one billion, thirty-one million, one hundred thirty-one thousand, thirteen".

Divisors: 1 23 103183 2373209 89330957 2054612011 9217436136131 212001031131013