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13121011102011 = 318121924134723
BaseRepresentation
bin1011111011101111100100…
…1101001011000100111011
31201110100121211020102222120
42332323321031023010323
53204433312320231021
643523413112252323
72522650613114151
oct276737115130473
951410554212876
1013121011102011
1141a965378080a
12157ab340a10a3
137423c9498ca7
143350bb7693d1
1517b4932b32c6
hexbeef934b13b

13121011102011 has 8 divisors (see below), whose sum is σ = 17494778733120. Its totient is φ = 8747292102792.

The previous prime is 13121011101893. The next prime is 13121011102019. The reversal of 13121011102011 is 11020111012131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13121011102011 - 222 = 13121006907707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13121011102019) 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, 11523705 + ... + 12611018.

It is an arithmetic number, because the mean of its divisors is an integer number (2186847341640).

Almost surely, 213121011102011 is an apocalyptic number.

13121011102011 is a deficient number, since it is larger than the sum of its proper divisors (4373767631109).

13121011102011 is a wasteful number, since it uses less digits than its factorization.

13121011102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24315945.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 13121011102011 its reverse (11020111012131), we get a palindrome (24141122114142).

The spelling of 13121011102011 in words is "thirteen trillion, one hundred twenty-one billion, eleven million, one hundred two thousand, eleven".

Divisors: 1 3 181219 543657 24134723 72404169 4373670367337 13121011102011