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121311302311213 = 73741106310746929
BaseRepresentation
bin11011100101010011111101…
…000101001101110100101101
3120220112020200020102101102121
4123211103331011031310231
5111400031021342424323
61110001350512152541
734360311106005310
oct3345237505156455
9526466606371377
10121311302311213
113572091a637073
1211732b39838751
13528c7b6c78511
1421d56d9700977
15e058ba933a5d
hex6e54fd14dd2d

121311302311213 has 32 divisors (see below), whose sum is σ = 145998677583360. Its totient is φ = 98610372311040.

The previous prime is 121311302311207. The next prime is 121311302311217. The reversal of 121311302311213 is 312113203113121.

It is a cyclic number.

It is not a de Polignac number, because 121311302311213 - 213 = 121311302303021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121311302311217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5914533 + ... + 16661461.

It is an arithmetic number, because the mean of its divisors is an integer number (4562458674480).

Almost surely, 2121311302311213 is an apocalyptic number.

It is an amenable number.

121311302311213 is a deficient number, since it is larger than the sum of its proper divisors (24687375272147).

121311302311213 is a wasteful number, since it uses less digits than its factorization.

121311302311213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10748077.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 121311302311213 its reverse (312113203113121), we get a palindrome (433424505424334).

The spelling of 121311302311213 in words is "one hundred twenty-one trillion, three hundred eleven billion, three hundred two million, three hundred eleven thousand, two hundred thirteen".

Divisors: 1 7 37 41 259 287 1063 1517 7441 10619 39331 43583 275317 305081 1612571 10746929 11287997 75228503 397636373 440624089 2783454611 3084368623 11423985527 16303091293 79967898689 114121639051 422687464499 468383406607 2958812251493 3278683846249 17330186044459 121311302311213