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1312303000231 = 11311613300887
BaseRepresentation
bin10011000110001011010…
…110101010101010100111
311122110021122121121202101
4103012023112222222213
5133000044032001411
62442510315352531
7163545043311616
oct23061326525247
94573248547671
101312303000231
114665a9917383
121923bb752747
1396998c6a532
144773151b87d
15242090988c1
hex1318b5aaaa7

1312303000231 has 4 divisors (see below), whose sum is σ = 1323916301232. Its totient is φ = 1300689699232.

The previous prime is 1312303000201. The next prime is 1312303000271. The reversal of 1312303000231 is 1320003032131.

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 1312303000231 - 25 = 1312303000199 is a prime.

It is a super-2 number, since 2×13123030002312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312303000199 and 1312303000208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312303000201) 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, 5806650331 + ... + 5806650556.

It is an arithmetic number, because the mean of its divisors is an integer number (330979075308).

Almost surely, 21312303000231 is an apocalyptic number.

1312303000231 is a deficient number, since it is larger than the sum of its proper divisors (11613301001).

1312303000231 is a wasteful number, since it uses less digits than its factorization.

1312303000231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11613301000.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 1312303000231 its reverse (1320003032131), we get a palindrome (2632306032362).

The spelling of 1312303000231 in words is "one trillion, three hundred twelve billion, three hundred three million, two hundred thirty-one", and thus it is an aban number.

Divisors: 1 113 11613300887 1312303000231