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13220043341 = 31426453011
BaseRepresentation
bin11000100111111100…
…11101101001001101
31021010022211210011212
430103332131221031
5204033312341331
610023451224205
7645414341261
oct142376355115
937108753155
1013220043341
11567440825a
12268b448065
131328b5606b
148d5a880a1
15525919d2b
hex313f9da4d

13220043341 has 4 divisors (see below), whose sum is σ = 13646496384. Its totient is φ = 12793590300.

The previous prime is 13220043337. The next prime is 13220043377. The reversal of 13220043341 is 14334002231.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14334002231 = 29494275939.

It is a cyclic number.

It is not a de Polignac number, because 13220043341 - 22 = 13220043337 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220043301) 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, 213226475 + ... + 213226536.

It is an arithmetic number, because the mean of its divisors is an integer number (3411624096).

Almost surely, 213220043341 is an apocalyptic number.

It is an amenable number.

13220043341 is a deficient number, since it is larger than the sum of its proper divisors (426453043).

13220043341 is an equidigital number, since it uses as much as digits as its factorization.

13220043341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426453042.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 13220043341 its reverse (14334002231), we get a palindrome (27554045572).

The spelling of 13220043341 in words is "thirteen billion, two hundred twenty million, forty-three thousand, three hundred forty-one".

Divisors: 1 31 426453011 13220043341