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20123000013313 = 49674051338839
BaseRepresentation
bin1001001001101010000000…
…10001001000001000000001
32122020201222110200120202101
410210311000101020020001
510114143401000411223
6110444213435150401
74144560461623531
oct444650021101001
978221873616671
1020123000013313
1164591309a15aa
12230bb7bba5401
13b2c78ab886c2
144d7d5bbb14c1
1524d6a33d44ad
hex124d40448201

20123000013313 has 4 divisors (see below), whose sum is σ = 20127051357120. Its totient is φ = 20118948669508.

The previous prime is 20123000013301. The next prime is 20123000013323. The reversal of 20123000013313 is 31331000032102.

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 not a de Polignac number, because 20123000013313 - 217 = 20122999882241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20123000013323) 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, 2025664453 + ... + 2025674386.

It is an arithmetic number, because the mean of its divisors is an integer number (5031762839280).

Almost surely, 220123000013313 is an apocalyptic number.

It is an amenable number.

20123000013313 is a deficient number, since it is larger than the sum of its proper divisors (4051343807).

20123000013313 is an equidigital number, since it uses as much as digits as its factorization.

20123000013313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4051343806.

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

Adding to 20123000013313 its reverse (31331000032102), we get a palindrome (51454000045415).

The spelling of 20123000013313 in words is "twenty trillion, one hundred twenty-three billion, thirteen thousand, three hundred thirteen".

Divisors: 1 4967 4051338839 20123000013313