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13220241123 = 36197119139
BaseRepresentation
bin11000100111111110…
…01101111011100011
31021010100012211111010
430103333031323203
5204033340203443
610023455352003
7645416124015
oct142377157343
937110184433
1013220241123
115674532911
12268b522603
131328bc50ab
148d5ada1b5
15525958733
hex313fcdee3

13220241123 has 8 divisors (see below), whose sum is σ = 17655467200. Its totient is φ = 8799254568.

The previous prime is 13220241119. The next prime is 13220241127. The reversal of 13220241123 is 32114202231.

It is an interprime number because it is at equal distance from previous prime (13220241119) and next prime (13220241127).

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

It is not a de Polignac number, because 13220241123 - 22 = 13220241119 is a prime.

It is a super-2 number, since 2×132202411232 (a number of 21 digits) contains 22 as substring.

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 13220241123.

It is not an unprimeable number, because it can be changed into a prime (13220241127) 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, 3557713 + ... + 3561426.

It is an arithmetic number, because the mean of its divisors is an integer number (2206933400).

Almost surely, 213220241123 is an apocalyptic number.

13220241123 is a deficient number, since it is larger than the sum of its proper divisors (4435226077).

13220241123 is an equidigital number, since it uses as much as digits as its factorization.

13220241123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7119761.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 13220241123 its reverse (32114202231), we get a palindrome (45334443354).

The spelling of 13220241123 in words is "thirteen billion, two hundred twenty million, two hundred forty-one thousand, one hundred twenty-three".

Divisors: 1 3 619 1857 7119139 21357417 4406747041 13220241123