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13123112233001 = 23570570097087
BaseRepresentation
bin1011111011110111011001…
…1100010110100000101001
31201110120001020212221211212
42332331312130112200221
53210002113212424001
643524401411002505
72523053645331401
oct276756634264051
951416036787755
1013123112233001
1141aa531811601
12157b41b899435
13742672891874
1433523a82b801
1517b5679a07bb
hexbef76716829

13123112233001 has 4 divisors (see below), whose sum is σ = 13693682330112. Its totient is φ = 12552542135892.

The previous prime is 13123112232991. The next prime is 13123112233039. The reversal of 13123112233001 is 10033221132131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13123112233001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 570570097087 = 13123112233001 / (1 + 3 + 1 + 2 + 3 + 1 + 1 + 2 + 2 + 3 + 3 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13123112233081) 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, 285285048521 + ... + 285285048566.

It is an arithmetic number, because the mean of its divisors is an integer number (3423420582528).

Almost surely, 213123112233001 is an apocalyptic number.

It is an amenable number.

13123112233001 is a deficient number, since it is larger than the sum of its proper divisors (570570097111).

13123112233001 is an equidigital number, since it uses as much as digits as its factorization.

13123112233001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570570097110.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 13123112233001 its reverse (10033221132131), we get a palindrome (23156333365132).

The spelling of 13123112233001 in words is "thirteen trillion, one hundred twenty-three billion, one hundred twelve million, two hundred thirty-three thousand, one".

Divisors: 1 23 570570097087 13123112233001