Search a number
-
+
13122212023231 = 190118413374887
BaseRepresentation
bin1011111011110100000011…
…0010010100101110111111
31201110110201111222120012021
42332331000302110232333
53204443242234220411
643524132212221011
72523022434560203
oct276750062245677
951413644876167
1013122212023231
1141aa10a656693
12157b20a30a767
1374255b22386c
14335193058b03
1517b513931a71
hexbef40c94bbf

13122212023231 has 8 divisors (see below), whose sum is σ = 13129862876064. Its totient is φ = 13114561960800.

The previous prime is 13122212023223. The next prime is 13122212023241. The reversal of 13122212023231 is 13232021222131.

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 13122212023231 - 23 = 13122212023223 is a prime.

It is a super-2 number, since 2×131222120232312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13122212023196 and 13122212023205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122212023241) 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, 34815670 + ... + 35190556.

It is an arithmetic number, because the mean of its divisors is an integer number (1641232859508).

Almost surely, 213122212023231 is an apocalyptic number.

13122212023231 is a deficient number, since it is larger than the sum of its proper divisors (7650852833).

13122212023231 is a wasteful number, since it uses less digits than its factorization.

13122212023231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395201.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 13122212023231 its reverse (13232021222131), we get a palindrome (26354233245362).

The spelling of 13122212023231 in words is "thirteen trillion, one hundred twenty-two billion, two hundred twelve million, twenty-three thousand, two hundred thirty-one".

Divisors: 1 1901 18413 374887 35003113 712660187 6902794331 13122212023231