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13111310121023 = 43449679096189
BaseRepresentation
bin1011111011001011011011…
…1110110111100000111111
31201102102120202010112211102
42332302312332313200333
53204303430342333043
643515130330443315
72522155326124562
oct276626676674077
951372522115742
1013111310121023
1141a5525830154
12157908729353b
13741511724c5a
1433483b2024d9
1517b0c67bd6b8
hexbecb6fb783f

13111310121023 has 8 divisors (see below), whose sum is σ = 13446104562000. Its totient is φ = 12777873873408.

The previous prime is 13111310121017. The next prime is 13111310121031. The reversal of 13111310121023 is 32012101311131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13111310121023 - 220 = 13111309072447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13111310120986 and 13111310121004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111310111023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339528788 + ... + 339567401.

It is an arithmetic number, because the mean of its divisors is an integer number (1680763070250).

Almost surely, 213111310121023 is an apocalyptic number.

13111310121023 is a deficient number, since it is larger than the sum of its proper divisors (334794440977).

13111310121023 is an equidigital number, since it uses as much as digits as its factorization.

13111310121023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679096681.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 13111310121023 its reverse (32012101311131), we get a palindrome (45123411432154).

The spelling of 13111310121023 in words is "thirteen trillion, one hundred eleven billion, three hundred ten million, one hundred twenty-one thousand, twenty-three".

Divisors: 1 43 449 19307 679096189 29201136127 304914188861 13111310121023