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30121131033331 = 138699266353613
BaseRepresentation
bin1101101100101000111110…
…10100001100001011110011
310221122112220102002211000221
412312110133110030023303
512422001034021031311
6144021242341353511
76226115464235662
oct666243724141363
9127575812084027
1030121131033331
119663333237268
123465815a08897
1313a6544a516c0
14761c289ccdd9
153737be1e5671
hex1b651f50c2f3

30121131033331 has 8 divisors (see below), whose sum is σ = 32441870185200. Its totient is φ = 27800924606112.

The previous prime is 30121131033317. The next prime is 30121131033349. The reversal of 30121131033331 is 13333013112103.

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 30121131033331 - 25 = 30121131033299 is a prime.

It is a super-3 number, since 3×301211310333313 (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30121131033296 and 30121131033305.

It is not an unprimeable number, because it can be changed into a prime (30121131036331) 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, 133063720 + ... + 133289893.

It is an arithmetic number, because the mean of its divisors is an integer number (4055233773150).

Almost surely, 230121131033331 is an apocalyptic number.

30121131033331 is a deficient number, since it is larger than the sum of its proper divisors (2320739151869).

30121131033331 is a wasteful number, since it uses less digits than its factorization.

30121131033331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266362325.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 30121131033331 its reverse (13333013112103), we get a palindrome (43454144145434).

The spelling of 30121131033331 in words is "thirty trillion, one hundred twenty-one billion, one hundred thirty-one million, thirty-three thousand, three hundred thirty-one".

Divisors: 1 13 8699 113087 266353613 3462596969 2317010079487 30121131033331