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13231211100000 = 25355376119541
BaseRepresentation
bin1100000010001010000110…
…1000110011011101100000
31201211220001211222101000120
43000202201220303131200
53213240010020200000
644050200124520240
72533631513463135
oct300424150633540
951756054871016
1013231211100000
114241363802313
1215983699b0080
1374c90c24c2aa
1433a57333058c
1517e292c146a0
hexc08a1a33760

13231211100000 has 576 divisors, whose sum is σ = 45318661545024. Its totient is φ = 3376512000000.

The previous prime is 13231211099983. The next prime is 13231211100007. The reversal of 13231211100000 is 111213231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231211100007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 677090230 + ... + 677109770.

It is an arithmetic number, because the mean of its divisors is an integer number (78678231849).

Almost surely, 213231211100000 is an apocalyptic number.

13231211100000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13231211100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22659330772512).

13231211100000 is an abundant number, since it is smaller than the sum of its proper divisors (32087450445024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13231211100000 is an equidigital number, since it uses as much as digits as its factorization.

13231211100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19677 (or 19649 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 13231211100000 its reverse (111213231), we get a palindrome (13231322313231).

The spelling of 13231211100000 in words is "thirteen trillion, two hundred thirty-one billion, two hundred eleven million, one hundred thousand".