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2001031210313 = 61165181198593
BaseRepresentation
bin11101000111100110110…
…000010010010101001001
321002022000022020202120122
4131013212300102111021
5230241102442212223
64131132215233025
7264366263435102
oct35074660222511
97068008222518
102001031210313
117016a5a51413
12283991378775
131169090ab3a5
146cbc98033a9
15370b87c65c8
hex1d1e6c12549

2001031210313 has 8 divisors (see below), whose sum is σ = 2033857554696. Its totient is φ = 1968205593600.

The previous prime is 2001031210273. The next prime is 2001031210361. The reversal of 2001031210313 is 3130121301002.

It can be written as a sum of positive squares in 4 ways, for example, as 36669186064 + 1964362024249 = 191492^2 + 1401557^2 .

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-2001031210313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001031210291 and 2001031210300.

It is not an unprimeable number, because it can be changed into a prime (2001031210613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9976745 + ... + 10175337.

It is an arithmetic number, because the mean of its divisors is an integer number (254232194337).

Almost surely, 22001031210313 is an apocalyptic number.

It is an amenable number.

2001031210313 is a deficient number, since it is larger than the sum of its proper divisors (32826344383).

2001031210313 is a wasteful number, since it uses less digits than its factorization.

2001031210313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363835.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 2001031210313 its reverse (3130121301002), we get a palindrome (5131152511315).

The spelling of 2001031210313 in words is "two trillion, one billion, thirty-one million, two hundred ten thousand, three hundred thirteen".

Divisors: 1 61 165181 198593 10076041 12114173 32803790333 2001031210313