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30213123111123 = 31033492221126143
BaseRepresentation
bin1101101111010100010100…
…11110000111100011010011
310221222100100111102120011020
412313222022132013203103
512430002434004023443
6144131414523050523
76235553233060341
oct667521236074323
9127870314376136
1030213123111123
11969934a383937
12347b609970a43
1313b21154a6124
147664742c2991
15375da53bc583
hex1b7a8a7878d3

30213123111123 has 32 divisors (see below), whose sum is σ = 40810510540800. Its totient is φ = 19880261758080.

The previous prime is 30213123111089. The next prime is 30213123111131. The reversal of 30213123111123 is 32111132131203.

It is not a de Polignac number, because 30213123111123 - 210 = 30213123110099 is a prime.

It is a super-2 number, since 2×302131231111232 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30213123111093 and 30213123111102.

It is not an unprimeable number, because it can be changed into a prime (30213123111623) 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, 239451790 + ... + 239577932.

It is an arithmetic number, because the mean of its divisors is an integer number (1275328454400).

Almost surely, 230213123111123 is an apocalyptic number.

30213123111123 is a deficient number, since it is larger than the sum of its proper divisors (10597387429677).

30213123111123 is a wasteful number, since it uses less digits than its factorization.

30213123111123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128819.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 30213123111123 its reverse (32111132131203), we get a palindrome (62324255242326).

The spelling of 30213123111123 in words is "thirty trillion, two hundred thirteen billion, one hundred twenty-three million, one hundred eleven thousand, one hundred twenty-three".

Divisors: 1 3 103 309 349 1047 2221 6663 35947 107841 126143 228763 378429 686289 775129 2325387 12992729 38978187 44023907 79838287 132071721 239514861 280163603 840490809 4534462421 13603387263 28856851109 86570553327 97777097447 293331292341 10071041037041 30213123111123