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13012211312223 = 354145671755503
BaseRepresentation
bin1011110101011010010000…
…1110111010011001011111
31201001221210101020110111120
42331112210032322121133
53201143002043442343
643401421035222023
72512046504135634
oct275264416723137
951057711213446
1013012211312223
1141674a2070372
121561a2b2a7913
1373507a838156
1432db19b2c18b
15178726748683
hexbd5a43ba65f

13012211312223 has 16 divisors (see below), whose sum is σ = 17385500445696. Its totient is φ = 8656871902560.

The previous prime is 13012211312213. The next prime is 13012211312231. The reversal of 13012211312223 is 32221311221031.

It is not a de Polignac number, because 13012211312223 - 26 = 13012211312159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13012211312193 and 13012211312202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13012211312213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6534490 + ... + 8289992.

It is an arithmetic number, because the mean of its divisors is an integer number (1086593777856).

Almost surely, 213012211312223 is an apocalyptic number.

13012211312223 is a deficient number, since it is larger than the sum of its proper divisors (4373289133473).

13012211312223 is a wasteful number, since it uses less digits than its factorization.

13012211312223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760614.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 13012211312223 its reverse (32221311221031), we get a palindrome (45233522533254).

The spelling of 13012211312223 in words is "thirteen trillion, twelve billion, two hundred eleven million, three hundred twelve thousand, two hundred twenty-three".

Divisors: 1 3 541 1623 4567 13701 1755503 2470747 5266509 7412241 949727123 2849181369 8017382201 24052146603 4337403770741 13012211312223