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23121130310 = 2510731816793
BaseRepresentation
bin10101100010001000…
…000111001101000110
32012200100111010010122
4111202020013031012
5334323002132220
614342142021542
71445651236115
oct254210071506
965610433118
1023121130310
119895303463
1245932778b2
1322461c06c5
141194a1dc7c
15904c8a425
hex562207346

23121130310 has 32 divisors (see below), whose sum is σ = 42026379552. Its totient is φ = 9157789440.

The previous prime is 23121130289. The next prime is 23121130339. The reversal of 23121130310 is 1303112132.

It is a super-2 number, since 2×231211303102 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3400274 + ... + 3407066.

It is an arithmetic number, because the mean of its divisors is an integer number (1313324361).

Almost surely, 223121130310 is an apocalyptic number.

23121130310 is a deficient number, since it is larger than the sum of its proper divisors (18905249242).

23121130310 is a wasteful number, since it uses less digits than its factorization.

23121130310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10088.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 23121130310 its reverse (1303112132), we get a palindrome (24424242442).

The spelling of 23121130310 in words is "twenty-three billion, one hundred twenty-one million, one hundred thirty thousand, three hundred ten".

Divisors: 1 2 5 10 107 214 535 1070 3181 6362 6793 13586 15905 31810 33965 67930 340367 680734 726851 1453702 1701835 3403670 3634255 7268510 21608533 43217066 108042665 216085330 2312113031 4624226062 11560565155 23121130310