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1031020230323 = 5011205751393
BaseRepresentation
bin11110000000011011001…
…10000011011010110011
310122120020120110101202102
433000031212003122303
5113343012134332243
62105351045411015
7134326433234216
oct17001546033263
93576216411672
101031020230323
11368287050086
1214799a709a6b
13762bcb32005
1437c8a18777d
151bc44c1a9b8
hexf00d9836b3

1031020230323 has 4 divisors (see below), whose sum is σ = 1031225986728. Its totient is φ = 1030814473920.

The previous prime is 1031020230319. The next prime is 1031020230343. The reversal of 1031020230323 is 3230320201301.

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 1031020230323 - 22 = 1031020230319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031020230295 and 1031020230304.

It is not an unprimeable number, because it can be changed into a prime (1031020230343) 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 3 ways as a sum of consecutive naturals, for example, 102870686 + ... + 102880707.

It is an arithmetic number, because the mean of its divisors is an integer number (257806496682).

Almost surely, 21031020230323 is an apocalyptic number.

1031020230323 is a deficient number, since it is larger than the sum of its proper divisors (205756405).

1031020230323 is an equidigital number, since it uses as much as digits as its factorization.

1031020230323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205756404.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 1031020230323 its reverse (3230320201301), we get a palindrome (4261340431624).

The spelling of 1031020230323 in words is "one trillion, thirty-one billion, twenty million, two hundred thirty thousand, three hundred twenty-three".

Divisors: 1 5011 205751393 1031020230323