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13231001021211 = 3210114555556679
BaseRepresentation
bin1100000010001001010100…
…0111011010101100011011
31201211212112012200021002200
43000202111013122230123
53213234042230134321
644050123222101243
72533623353030421
oct300422507325433
951755465607080
1013231001021211
114241266165a86
12159830b57a823
1374c8a787660c
1433a553487111
1517e27e568d26
hexc08951dab1b

13231001021211 has 12 divisors (see below), whose sum is σ = 19300668157680. Its totient is φ = 8733334006800.

The previous prime is 13231001021209. The next prime is 13231001021213. The reversal of 13231001021211 is 11212010013231.

13231001021211 is a `hidden beast` number, since 1 + 323 + 100 + 10 + 21 + 211 = 666.

It is an interprime number because it is at equal distance from previous prime (13231001021209) and next prime (13231001021213).

It is not a de Polignac number, because 13231001021211 - 21 = 13231001021209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13231001021213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7277777431 + ... + 7277779248.

It is an arithmetic number, because the mean of its divisors is an integer number (1608389013140).

Almost surely, 213231001021211 is an apocalyptic number.

13231001021211 is a deficient number, since it is larger than the sum of its proper divisors (6069667136469).

13231001021211 is a wasteful number, since it uses less digits than its factorization.

13231001021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14555556786 (or 14555556783 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 13231001021211 its reverse (11212010013231), we get a palindrome (24443011034442).

The spelling of 13231001021211 in words is "thirteen trillion, two hundred thirty-one billion, one million, twenty-one thousand, two hundred eleven".

Divisors: 1 3 9 101 303 909 14555556679 43666670037 131000010111 1470111224579 4410333673737 13231001021211