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30102131131223 = 199972879551959
BaseRepresentation
bin1101101100000101100101…
…10101010100001101010111
310221120201212021102210011212
412312002302311110031113
512421143131032144343
6144004421135452035
76224543604601244
oct666026265241527
9127521767383155
1030102131131223
119656273298628
123461bb298701b
1313a4807619688
14760d4547c5cb
1537305b179c18
hex1b60b2d54357

30102131131223 has 16 divisors (see below), whose sum is σ = 31729310208000. Its totient is φ = 28479257703072.

The previous prime is 30102131131169. The next prime is 30102131131231. The reversal of 30102131131223 is 32213113120103.

It is a cyclic number.

It is not a de Polignac number, because 30102131131223 - 234 = 30084951262039 is a prime.

It is a super-2 number, since 2×301021311312232 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30102131101223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54260918 + ... + 54812876.

It is an arithmetic number, because the mean of its divisors is an integer number (1983081888000).

Almost surely, 230102131131223 is an apocalyptic number.

30102131131223 is a deficient number, since it is larger than the sum of its proper divisors (1627179076777).

30102131131223 is a wasteful number, since it uses less digits than its factorization.

30102131131223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555854.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 30102131131223 its reverse (32213113120103), we get a palindrome (62315244251326).

The spelling of 30102131131223 in words is "thirty trillion, one hundred two billion, one hundred thirty-one million, one hundred thirty-one thousand, two hundred twenty-three".

Divisors: 1 19 997 2879 18943 54701 551959 2870363 10487221 54536897 550303123 1589089961 10455759337 30192709259 1584322691117 30102131131223