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13122143423023 = 15186901612073
BaseRepresentation
bin1011111011110011110010…
…1100101000101000101111
31201110110112201220022101211
42332330330230220220233
53204443122204014043
643524121322015251
72523020642513455
oct276747454505057
951413481808354
1013122143423023
1141aa0849612a8
12157b1ab347527
13742549c5521b
14335187cbc9d5
1517b50c8d0a9d
hexbef3cb28a2f

13122143423023 has 4 divisors (see below), whose sum is σ = 13209045035248. Its totient is φ = 13035241810800.

The previous prime is 13122143423017. The next prime is 13122143423033. The reversal of 13122143423023 is 32032434122131.

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 13122143423023 - 229 = 13121606552111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122143423003) 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, 43450805886 + ... + 43450806187.

It is an arithmetic number, because the mean of its divisors is an integer number (3302261258812).

Almost surely, 213122143423023 is an apocalyptic number.

13122143423023 is a deficient number, since it is larger than the sum of its proper divisors (86901612225).

13122143423023 is an equidigital number, since it uses as much as digits as its factorization.

13122143423023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86901612224.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 13122143423023 its reverse (32032434122131), we get a palindrome (45154577545154).

The spelling of 13122143423023 in words is "thirteen trillion, one hundred twenty-two billion, one hundred forty-three million, four hundred twenty-three thousand, twenty-three".

Divisors: 1 151 86901612073 13122143423023