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21233123010 = 232511191128821
BaseRepresentation
bin10011110001100101…
…111011111011000010
32000210202212102000100
4103301211323323002
5321441134414020
613430535303230
71351114365501
oct236145737302
960722772010
1021233123010
1190065a9650
124146b1ab16
132004cc8718
141055d98838
1584414aa90
hex4f197bec2

21233123010 has 96 divisors (see below), whose sum is σ = 63394643520. Its totient is φ = 4876502400.

The previous prime is 21233122987. The next prime is 21233123047. The reversal of 21233123010 is 1032133212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 545601 + ... + 583220.

It is an arithmetic number, because the mean of its divisors is an integer number (660360870).

Almost surely, 221233123010 is an apocalyptic number.

21233123010 is an abundant number, since it is smaller than the sum of its proper divisors (42161520510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21233123010 is a wasteful number, since it uses less digits than its factorization.

21233123010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128864 (or 1128861 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21233123010 its reverse (1032133212), we get a palindrome (22265256222).

The spelling of 21233123010 in words is "twenty-one billion, two hundred thirty-three million, one hundred twenty-three thousand, ten".

Divisors: 1 2 3 5 6 9 10 11 15 18 19 22 30 33 38 45 55 57 66 90 95 99 110 114 165 171 190 198 209 285 330 342 418 495 570 627 855 990 1045 1254 1710 1881 2090 3135 3762 6270 9405 18810 1128821 2257642 3386463 5644105 6772926 10159389 11288210 12417031 16932315 20318778 21447599 24834062 33864630 37251093 42895198 50796945 62085155 64342797 74502186 101593890 107237995 111753279 124170310 128685594 186255465 193028391 214475990 223506558 235923589 321713985 372510930 386056782 471847178 558766395 643427970 707770767 965141955 1117532790 1179617945 1415541534 1930283910 2123312301 2359235890 3538853835 4246624602 7077707670 10616561505 21233123010