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12201312231011 = 1719914832431999
BaseRepresentation
bin1011000110001101011011…
…1000011001111001100011
31121012102201102120000211102
42301203112320121321203
53044401241412343021
641541112213505015
72366341614520631
oct261432670317143
947172642500742
1012201312231011
113984602737642
12145084294216b
136a676a839bc7
14302792086351
151625b669e00b
hexb18d6e19e63

12201312231011 has 16 divisors (see below), whose sum is σ = 12992716800000. Its totient is φ = 11418172242048.

The previous prime is 12201312231001. The next prime is 12201312231023. The reversal of 12201312231011 is 11013221310221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12201312231011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12201312231001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3800990 + ... + 6232988.

It is an arithmetic number, because the mean of its divisors is an integer number (812044800000).

Almost surely, 212201312231011 is an apocalyptic number.

12201312231011 is a deficient number, since it is larger than the sum of its proper divisors (791404568989).

12201312231011 is a wasteful number, since it uses less digits than its factorization.

12201312231011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2433698.

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

Adding to 12201312231011 its reverse (11013221310221), we get a palindrome (23214533541232).

The spelling of 12201312231011 in words is "twelve trillion, two hundred one billion, three hundred twelve million, two hundred thirty-one thousand, eleven".

Divisors: 1 17 199 1483 3383 25211 295117 2431999 5016989 41343983 483967801 3606654517 8227452617 61313126789 717724248883 12201312231011