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313001302123 = 1798717401529
BaseRepresentation
bin1001000111000000101…
…01001101100001101011
31002220220121011121101101
410203200111031201223
520112011313131443
6355442452102231
731420315112266
oct4434025154153
91086817147341
10313001302123
1111081a090a94
12507b3604977
13236925681a3
1411213b29cdd
15821dcbb84d
hex48e054d86b

313001302123 has 4 divisors (see below), whose sum is σ = 313018721640. Its totient is φ = 312983882608.

The previous prime is 313001302099. The next prime is 313001302147. The reversal of 313001302123 is 321203100313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321203100313 = 390653822221.

It is an interprime number because it is at equal distance from previous prime (313001302099) and next prime (313001302147).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-313001302123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313001302123.

It is not an unprimeable number, because it can be changed into a prime (313001332123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8682778 + ... + 8718751.

It is an arithmetic number, because the mean of its divisors is an integer number (78254680410).

Almost surely, 2313001302123 is an apocalyptic number.

313001302123 is a deficient number, since it is larger than the sum of its proper divisors (17419517).

313001302123 is a wasteful number, since it uses less digits than its factorization.

313001302123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17419516.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 313001302123 its reverse (321203100313), we get a palindrome (634204402436).

The spelling of 313001302123 in words is "three hundred thirteen billion, one million, three hundred two thousand, one hundred twenty-three".

Divisors: 1 17987 17401529 313001302123