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131303111210321 = 319654534387147
BaseRepresentation
bin11101110110101101100011…
…010011010011010101010001
3122012220110021120122121012212
4131312231203103103111101
5114202232232432212241
61143131452213401505
736441223333221161
oct3566554323232521
9565813246577185
10131303111210321
1138923378238816
121288750a339295
135835aa410107b
14245d166a1c5a1
15102a7666cdbeb
hex776b634d3551

131303111210321 has 8 divisors (see below), whose sum is σ = 135538866726144. Its totient is φ = 127067366399760.

The previous prime is 131303111210287. The next prime is 131303111210353. The reversal of 131303111210321 is 123012111303131.

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-131303111210321 is a prime.

It is a super-2 number, since 2×1313031112103212 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131303111210021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27735470 + ... + 32122616.

It is an arithmetic number, because the mean of its divisors is an integer number (16942358340768).

Almost surely, 2131303111210321 is an apocalyptic number.

It is an amenable number.

131303111210321 is a deficient number, since it is larger than the sum of its proper divisors (4235755515823).

131303111210321 is an equidigital number, since it uses as much as digits as its factorization.

131303111210321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5352631.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 131303111210321 its reverse (123012111303131), we get a palindrome (254315222513452).

The spelling of 131303111210321 in words is "one hundred thirty-one trillion, three hundred three billion, one hundred eleven million, two hundred ten thousand, three hundred twenty-one".

Divisors: 1 31 965453 4387147 29929043 136001557 4235584232591 131303111210321