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20033330131 is a prime number
BaseRepresentation
bin10010101010000101…
…000101101111010011
31220201011020121121001
4102222011011233103
5312012013031011
613111515442431
71306305332203
oct225205055723
956634217531
1020033330131
118550324491
123a71156417
131b735775c9
14d808c0403
157c3b517c1
hex4aa145bd3

20033330131 has 2 divisors, whose sum is σ = 20033330132. Its totient is φ = 20033330130.

The previous prime is 20033330101. The next prime is 20033330147. The reversal of 20033330131 is 13103333002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20033330131 - 25 = 20033330099 is a prime.

It is a super-2 number, since 2×200333301312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20033330099 and 20033330108.

It is not a weakly prime, because it can be changed into another prime (20033330101) 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 as a sum of consecutive naturals, namely, 10016665065 + 10016665066.

It is an arithmetic number, because the mean of its divisors is an integer number (10016665066).

Almost surely, 220033330131 is an apocalyptic number.

20033330131 is a deficient number, since it is larger than the sum of its proper divisors (1).

20033330131 is an equidigital number, since it uses as much as digits as its factorization.

20033330131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 20033330131 its reverse (13103333002), we get a palindrome (33136663133).

The spelling of 20033330131 in words is "twenty billion, thirty-three million, three hundred thirty thousand, one hundred thirty-one".