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13231213013311 = 1571021304127143
BaseRepresentation
bin1100000010001010000111…
…0000000110100100111111
31201211220001222120120120221
43000202201300012210333
53213240011012411221
644050200233522211
72533631535652246
oct300424160064477
951756058516527
1013231213013311
114241364899867
12159836a573367
1374c90c76c127
1433a5736ab95d
1517e292e91541
hexc08a1c0693f

13231213013311 has 16 divisors (see below), whose sum is σ = 13333404022848. Its totient is φ = 13129258521600.

The previous prime is 13231213013303. The next prime is 13231213013327. The reversal of 13231213013311 is 11331031213231.

It is a cyclic number.

It is not a de Polignac number, because 13231213013311 - 23 = 13231213013303 is a prime.

It is a super-2 number, since 2×132312130133112 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231213613311) 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, 487449606 + ... + 487476748.

It is an arithmetic number, because the mean of its divisors is an integer number (833337751428).

Almost surely, 213231213013311 is an apocalyptic number.

13231213013311 is a deficient number, since it is larger than the sum of its proper divisors (102191009537).

13231213013311 is a wasteful number, since it uses less digits than its factorization.

13231213013311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31362.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 13231213013311 its reverse (11331031213231), we get a palindrome (24562244226542).

The spelling of 13231213013311 in words is "thirteen trillion, two hundred thirty-one billion, two hundred thirteen million, thirteen thousand, three hundred eleven".

Divisors: 1 157 1021 3041 27143 160297 477437 3104861 4261451 27713003 82541863 487463177 4350941471 12959072491 84275242123 13231213013311