Search a number
-
+
1312113230303 = 10312738963401
BaseRepresentation
bin10011000110000000000…
…010110000000111011111
311122102210102112022100112
4103012000002300013133
5132444201441332203
62442435420120235
7163540250302541
oct23060002600737
94572712468315
101312113230303
11466511791427
1219236809607b
1396968855735
144771423d691
15241e75b06d8
hex131800b01df

1312113230303 has 4 divisors (see below), whose sum is σ = 1324852193808. Its totient is φ = 1299374266800.

The previous prime is 1312113230231. The next prime is 1312113230333. The reversal of 1312113230303 is 3030323112131.

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 1312113230303 - 216 = 1312113164767 is a prime.

It is a super-2 number, since 2×13121132303032 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312113230333) 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, 6369481598 + ... + 6369481803.

It is an arithmetic number, because the mean of its divisors is an integer number (331213048452).

Almost surely, 21312113230303 is an apocalyptic number.

1312113230303 is a deficient number, since it is larger than the sum of its proper divisors (12738963505).

1312113230303 is a wasteful number, since it uses less digits than its factorization.

1312113230303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12738963504.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 1312113230303 its reverse (3030323112131), we get a palindrome (4342436342434).

The spelling of 1312113230303 in words is "one trillion, three hundred twelve billion, one hundred thirteen million, two hundred thirty thousand, three hundred three".

Divisors: 1 103 12738963401 1312113230303