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20013030010331 = 64131731206143
BaseRepresentation
bin1001000110011101001011…
…00010110110110111011011
32121212020010110201121112222
410203032211202312313123
510110343141140312311
6110321505320254255
74133615353210121
oct443164542666733
977766113647488
1020013030010331
11641652977a716
1222b27ab31138b
13b222b3962317
144d28c8999911
1524a8b8c64adb
hex1233a58b6ddb

20013030010331 has 4 divisors (see below), whose sum is σ = 20013061857792. Its totient is φ = 20012998162872.

The previous prime is 20013030010313. The next prime is 20013030010387. The reversal of 20013030010331 is 13301003031002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20013030010331 - 238 = 19738152103387 is a prime.

It is a super-2 number, since 2×200130300103312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20013030010231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14961755 + ... + 16244388.

It is an arithmetic number, because the mean of its divisors is an integer number (5003265464448).

Almost surely, 220013030010331 is an apocalyptic number.

20013030010331 is a deficient number, since it is larger than the sum of its proper divisors (31847461).

20013030010331 is an equidigital number, since it uses as much as digits as its factorization.

20013030010331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31847460.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 20013030010331 its reverse (13301003031002), we get a palindrome (33314033041333).

The spelling of 20013030010331 in words is "twenty trillion, thirteen billion, thirty million, ten thousand, three hundred thirty-one".

Divisors: 1 641317 31206143 20013030010331