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211001022131331 = 3155254345302239
BaseRepresentation
bin101111111110011110000000…
…111110001010110010000011
31000200002111112000121101110210
4233332132000332022302003
5210124020043131200311
62024432310440525203
762305215012465645
oct5776360076126203
91020074460541423
10211001022131331
11612600382316a3
121b7b94b3480803
13909740739b673
143a1670ac28895
15195d94a34c3a6
hexbfe780f8ac83

211001022131331 has 8 divisors (see below), whose sum is σ = 281334883594240. Its totient is φ = 140667254377992.

The previous prime is 211001022131321. The next prime is 211001022131363. The reversal of 211001022131331 is 133131220100112.

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

It is not a de Polignac number, because 211001022131331 - 219 = 211001021607043 is a prime.

It is a super-2 number, since 2×2110010221313312 (a number of 29 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 = 211001022131298 and 211001022131307.

It is not an unprimeable number, because it can be changed into a prime (211001022131321) 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, 17993491 + ... + 27308748.

It is an arithmetic number, because the mean of its divisors is an integer number (35166860449280).

Almost surely, 2211001022131331 is an apocalyptic number.

211001022131331 is a deficient number, since it is larger than the sum of its proper divisors (70333861462909).

211001022131331 is a wasteful number, since it uses less digits than its factorization.

211001022131331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46854785.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 211001022131331 its reverse (133131220100112), we get a palindrome (344132242231443).

The spelling of 211001022131331 in words is "two hundred eleven trillion, one billion, twenty-two million, one hundred thirty-one thousand, three hundred thirty-one".

Divisors: 1 3 1552543 4657629 45302239 135906717 70333674043777 211001022131331