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23121111230230 = 2513187409949019
BaseRepresentation
bin1010100000111010011011…
…00111110010011100010110
310000212100121222212201220111
411100131031213302130112
511012304013433331410
6121101405235353234
74604305455526456
oct520351547623426
9100770558781814
1023121111230230
117404676583622
12271503945281a
13cb94082b1480
1459d0d3cbdd66
152a1676dd3b8a
hex15074d9f2716

23121111230230 has 32 divisors (see below), whose sum is σ = 44819671226400. Its totient is φ = 8536971136512.

The previous prime is 23121111230221. The next prime is 23121111230233. The reversal of 23121111230230 is 3203211112132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121111230233) 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, 23888661 + ... + 24837679.

It is an arithmetic number, because the mean of its divisors is an integer number (1400614725825).

Almost surely, 223121111230230 is an apocalyptic number.

23121111230230 is a deficient number, since it is larger than the sum of its proper divisors (21698559996170).

23121111230230 is a wasteful number, since it uses less digits than its factorization.

23121111230230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136448.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 23121111230230 its reverse (3203211112132), we get a palindrome (26324322342362).

The spelling of 23121111230230 in words is "twenty-three trillion, one hundred twenty-one billion, one hundred eleven million, two hundred thirty thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 187409 374818 937045 949019 1874090 1898038 2436317 4745095 4872634 9490190 12181585 12337247 24363170 24674494 61686235 123372470 177854701771 355709403542 889273508855 1778547017710 2312111123023 4624222246046 11560555615115 23121111230230