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13123210001003 = 17569746952587
BaseRepresentation
bin1011111011110111110001…
…0001010011101001101011
31201110120022001212002022222
42332331330101103221223
53210002313230013003
643524415222304255
72523056243336324
oct276757421235153
951416261762288
1013123210001003
1141aa581a19103
12157b44858808b
13742689c0345b
143352497db44b
1517b571363c38
hexbef7c453a6b

13123210001003 has 4 divisors (see below), whose sum is σ = 13123956971160. Its totient is φ = 13122463030848.

The previous prime is 13123210000963. The next prime is 13123210001071. The reversal of 13123210001003 is 30010001232131.

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-13123210001003 is a prime.

It is a super-2 number, since 2×131232100010032 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13123210001093) 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, 373458725 + ... + 373493862.

It is an arithmetic number, because the mean of its divisors is an integer number (3280989242790).

Almost surely, 213123210001003 is an apocalyptic number.

13123210001003 is a deficient number, since it is larger than the sum of its proper divisors (746970157).

13123210001003 is an equidigital number, since it uses as much as digits as its factorization.

13123210001003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746970156.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13123210001003 its reverse (30010001232131), we get a palindrome (43133211233134).

The spelling of 13123210001003 in words is "thirteen trillion, one hundred twenty-three billion, two hundred ten million, one thousand, three".

Divisors: 1 17569 746952587 13123210001003