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13111202213211 = 343740991371641
BaseRepresentation
bin1011111011001011000010…
…0011001110110101011011
31201102102022020002021010210
42332302300203032311123
53204303220231310321
643515111513542203
72522152545665544
oct276626043166533
951372266067123
1013111202213211
1141a547a928443
121579057114963
137414c5272c8b
1433482ab534cb
1517b0bc0a5b76
hexbecb08ced5b

13111202213211 has 16 divisors (see below), whose sum is σ = 17888406307200. Its totient is φ = 8537405580480.

The previous prime is 13111202213189. The next prime is 13111202213227. The reversal of 13111202213211 is 11231220211131.

It is not a de Polignac number, because 13111202213211 - 210 = 13111202212187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13111202213911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8872951 + ... + 10244591.

It is an arithmetic number, because the mean of its divisors is an integer number (1118025394200).

Almost surely, 213111202213211 is an apocalyptic number.

13111202213211 is a deficient number, since it is larger than the sum of its proper divisors (4777204093989).

13111202213211 is a wasteful number, since it uses less digits than its factorization.

13111202213211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445786.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 13111202213211 its reverse (11231220211131), we get a palindrome (24342422424342).

The spelling of 13111202213211 in words is "thirteen trillion, one hundred eleven billion, two hundred two million, two hundred thirteen thousand, two hundred eleven".

Divisors: 1 3 43 129 74099 222297 1371641 3186257 4114923 9558771 58980563 176941689 101637226459 304911679377 4370400737737 13111202213211