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30121131131311 = 114187396539359
BaseRepresentation
bin1101101100101000111110…
…10100100100000110101111
310221122112220102021210102211
412312110133110210012233
512422001034032200221
6144021242343431251
76226115465124433
oct666243724440657
9127575812253384
1030121131131311
1196633332a3940
123465815a55527
1313a6544a8718c
14761c28a169c3
153737be2146e1
hex1b651f5241af

30121131131311 has 8 divisors (see below), whose sum is σ = 32859499276800. Its totient is φ = 27382776902040.

The previous prime is 30121131131309. The next prime is 30121131131317. The reversal of 30121131131311 is 11313113112103.

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

It is a cyclic number.

It is not a de Polignac number, because 30121131131311 - 21 = 30121131131309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121131131317) 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, 1336450 + ... + 7875808.

It is an arithmetic number, because the mean of its divisors is an integer number (4107437409600).

Almost surely, 230121131131311 is an apocalyptic number.

30121131131311 is a deficient number, since it is larger than the sum of its proper divisors (2738368145489).

30121131131311 is a wasteful number, since it uses less digits than its factorization.

30121131131311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6958109.

The product of its (nonzero) digits is 162, while the sum is 22.

Adding to 30121131131311 its reverse (11313113112103), we get a palindrome (41434244243414).

The spelling of 30121131131311 in words is "thirty trillion, one hundred twenty-one billion, one hundred thirty-one million, one hundred thirty-one thousand, three hundred eleven".

Divisors: 1 11 418739 4606129 6539359 71932949 2738284648301 30121131131311