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131030311023 = 3229922754409
BaseRepresentation
bin111101000001000000…
…0111110000001101111
3110112012201122110122100
41322002000332001233
54121322224423043
6140110002150143
712316024160403
oct1720200760157
9415181573570
10131030311023
115062a216047
1221489952353
13c482495421
1464b0267103
15361d530cd3
hex1e8203e06f

131030311023 has 24 divisors (see below), whose sum is σ = 195817237200. Its totient is φ = 84330658944.

The previous prime is 131030310997. The next prime is 131030311031. The reversal of 131030311023 is 320113030131.

It is a happy number.

It is not a de Polignac number, because 131030311023 - 28 = 131030310767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131030310987 and 131030311005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131030311033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2381043 + ... + 2435451.

It is an arithmetic number, because the mean of its divisors is an integer number (8159051550).

Almost surely, 2131030311023 is an apocalyptic number.

131030311023 is a deficient number, since it is larger than the sum of its proper divisors (64786926177).

131030311023 is a wasteful number, since it uses less digits than its factorization.

131030311023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63671 (or 63668 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 131030311023 its reverse (320113030131), we get a palindrome (451143341154).

The spelling of 131030311023 in words is "one hundred thirty-one billion, thirty million, three hundred eleven thousand, twenty-three".

Divisors: 1 3 9 29 87 261 9227 27681 54409 83043 163227 267583 489681 802749 1577861 2408247 4733583 14200749 502031843 1506095529 4518286587 14558923447 43676770341 131030311023