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13121221002310 = 257137948761459
BaseRepresentation
bin1011111011110000010110…
…1101111000010001000110
31201110101011110012111001201
42332330011231320101012
53204434230034033220
643523450011213114
72522656042204321
oct276740555702106
951411143174051
1013121221002310
1141a9751205a33
12157ab9244719a
13742430b0b655
143350db5a77b8
1517b4a6925d0a
hexbef05b78446

13121221002310 has 32 divisors (see below), whose sum is σ = 24014043820800. Its totient is φ = 5160912714720.

The previous prime is 13121221002287. The next prime is 13121221002317. The reversal of 13121221002310 is 1320012212131.

It is a super-2 number, since 2×131212210023102 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121221002317) 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, 24111640 + ... + 24649819.

It is an arithmetic number, because the mean of its divisors is an integer number (750438869400).

Almost surely, 213121221002310 is an apocalyptic number.

13121221002310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13121221002310 is a deficient number, since it is larger than the sum of its proper divisors (10892822818490).

13121221002310 is a wasteful number, since it uses less digits than its factorization.

13121221002310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48761916.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 13121221002310 its reverse (1320012212131), we get a palindrome (14441233214441).

The spelling of 13121221002310 in words is "thirteen trillion, one hundred twenty-one billion, two hundred twenty-one million, two thousand, three hundred ten".

Divisors: 1 2 5 10 71 142 355 379 710 758 1895 3790 26909 53818 134545 269090 48761459 97522918 243807295 487614590 3462063589 6924127178 17310317945 18480592961 34620635890 36961185922 92402964805 184805929610 1312122100231 2624244200462 6560610501155 13121221002310