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30210330131221 = 172237968960731
BaseRepresentation
bin1101101111001111000111…
…11111101111101100010101
310221222002010211221111000011
412313213203333233230111
512424431224003144341
6144130233431520221
76235424100120652
oct667474377575425
9127862124844004
1030210330131221
119698146860789
12347ab6a529071
1313b1a8b9662b6
1476628b3a8c29
15375c900bcb81
hex1b79e3fefb15

30210330131221 has 8 divisors (see below), whose sum is σ = 32130849671424. Its totient is φ = 28305748512960.

The previous prime is 30210330131207. The next prime is 30210330131231. The reversal of 30210330131221 is 12213103301203.

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 30210330131221 - 223 = 30210321742613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30210330131192 and 30210330131201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30210330131231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3984476575 + ... + 3984484156.

It is an arithmetic number, because the mean of its divisors is an integer number (4016356208928).

Almost surely, 230210330131221 is an apocalyptic number.

It is an amenable number.

30210330131221 is a deficient number, since it is larger than the sum of its proper divisors (1920519540203).

30210330131221 is a wasteful number, since it uses less digits than its factorization.

30210330131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7968960971.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 30210330131221 its reverse (12213103301203), we get a palindrome (42423433432424).

The spelling of 30210330131221 in words is "thirty trillion, two hundred ten billion, three hundred thirty million, one hundred thirty-one thousand, two hundred twenty-one".

Divisors: 1 17 223 3791 7968960731 135472332427 1777078243013 30210330131221