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13120331224043 = 16778564857629
BaseRepresentation
bin1011111011101101000010…
…1011101001001111101011
31201110021212102221001202002
42332323100223221033223
53204430414243132133
643523221424201215
72522625016210511
oct276732053511753
951407772831662
1013120331224043
1141a9334a2539a
12157a98446920b
1374231b683734
1433505534c4b1
1517b453767ce8
hexbeed0ae93eb

13120331224043 has 4 divisors (see below), whose sum is σ = 13198896081840. Its totient is φ = 13041766366248.

The previous prime is 13120331223977. The next prime is 13120331224061. The reversal of 13120331224043 is 34042213302131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13120331224043 is a prime.

It is a super-2 number, since 2×131203312240432 (a number of 27 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 = 13120331223997 and 13120331224015.

It is not an unprimeable number, because it can be changed into a prime (13120331224643) 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, 39282428648 + ... + 39282428981.

It is an arithmetic number, because the mean of its divisors is an integer number (3299724020460).

Almost surely, 213120331224043 is an apocalyptic number.

13120331224043 is a deficient number, since it is larger than the sum of its proper divisors (78564857797).

13120331224043 is an equidigital number, since it uses as much as digits as its factorization.

13120331224043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78564857796.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 13120331224043 its reverse (34042213302131), we get a palindrome (47162544526174).

The spelling of 13120331224043 in words is "thirteen trillion, one hundred twenty billion, three hundred thirty-one million, two hundred twenty-four thousand, forty-three".

Divisors: 1 167 78564857629 13120331224043