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13122120013211 = 111663717330127
BaseRepresentation
bin1011111011110011101101…
…0011010101010110011011
31201110110111002211222011202
42332330323103111112123
53204443100210410321
643524115124144415
72523020236523336
oct276747323252633
951413432758152
1013122120013211
1141aa072722150
12157b1a353810b
13742545149a71
14335184b4761d
1517b50a80970b
hexbef3b4d559b

13122120013211 has 8 divisors (see below), whose sum is σ = 14323647995904. Its totient is φ = 11922026694120.

The previous prime is 13122120013207. The next prime is 13122120013243. The reversal of 13122120013211 is 11231002122131.

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 13122120013211 - 22 = 13122120013207 is a prime.

It is a super-2 number, since 2×131221200132112 (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 (13122120013201) 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, 358646771 + ... + 358683356.

It is an arithmetic number, because the mean of its divisors is an integer number (1790455999488).

Almost surely, 213122120013211 is an apocalyptic number.

13122120013211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13122120013211 is a deficient number, since it is larger than the sum of its proper divisors (1201527982693).

13122120013211 is a wasteful number, since it uses less digits than its factorization.

13122120013211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717331801.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 13122120013211 its reverse (11231002122131), we get a palindrome (24353122135342).

The spelling of 13122120013211 in words is "thirteen trillion, one hundred twenty-two billion, one hundred twenty million, thirteen thousand, two hundred eleven".

Divisors: 1 11 1663 18293 717330127 7890631397 1192920001201 13122120013211