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13121011320310 = 257916608875089
BaseRepresentation
bin1011111011101111100100…
…1110000000010111110110
31201110100121211122112102201
42332323321032000113312
53204433312344222220
643523413121055114
72522650615013455
oct276737116002766
951410554575381
1013121011320310
1141a965390a823
12157ab3418749a
137423c954446a
143350bb7c4b9c
1517b493307d0a
hexbeef93805f6

13121011320310 has 16 divisors (see below), whose sum is σ = 23916780129600. Its totient is φ = 5181969027456.

The previous prime is 13121011320289. The next prime is 13121011320317. The reversal of 13121011320310 is 1302311012131.

It is a super-2 number, since 2×131210113203102 (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 (13121011320317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8304436755 + ... + 8304438334.

It is an arithmetic number, because the mean of its divisors is an integer number (1494798758100).

Almost surely, 213121011320310 is an apocalyptic number.

13121011320310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13121011320310 is a deficient number, since it is larger than the sum of its proper divisors (10795768809290).

13121011320310 is a wasteful number, since it uses less digits than its factorization.

13121011320310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16608875175.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 13121011320310 its reverse (1302311012131), we get a palindrome (14423322332441).

The spelling of 13121011320310 in words is "thirteen trillion, one hundred twenty-one billion, eleven million, three hundred twenty thousand, three hundred ten".

Divisors: 1 2 5 10 79 158 395 790 16608875089 33217750178 83044375445 166088750890 1312101132031 2624202264062 6560505660155 13121011320310