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210120202011 = 31723179130607
BaseRepresentation
bin1100001110110000100…
…0111101011100011011
3202002100122020012210010
43003230020331130123
511420311232431021
6240310005053003
721115655151066
oct3035410753433
9662318205703
10210120202011
1181125415815
12348809b7163
1316a77ba44a5
14a2541b38dd
1556ebb77976
hex30ec23d71b

210120202011 has 16 divisors (see below), whose sum is σ = 309537690624. Its totient is φ = 126107946624.

The previous prime is 210120202001. The next prime is 210120202013. The reversal of 210120202011 is 110202021012.

It is not a de Polignac number, because 210120202011 - 25 = 210120201979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210120202013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89564131 + ... + 89566476.

It is an arithmetic number, because the mean of its divisors is an integer number (19346105664).

Almost surely, 2210120202011 is an apocalyptic number.

210120202011 is a deficient number, since it is larger than the sum of its proper divisors (99417488613).

210120202011 is a wasteful number, since it uses less digits than its factorization.

210120202011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179130650.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210120202011 its reverse (110202021012), we get a palindrome (320322223023).

The spelling of 210120202011 in words is "two hundred ten billion, one hundred twenty million, two hundred two thousand, eleven".

Divisors: 1 3 17 23 51 69 391 1173 179130607 537391821 3045220319 4120003961 9135660957 12360011883 70040067337 210120202011