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101223031012 = 22191331881987
BaseRepresentation
bin101111001000101011…
…1001110000011100100
3100200021101222202101121
41132101113032003210
53124301043443022
6114300132503324
710212254365405
oct1362127160344
9320241882347
10101223031012
1139a23842434
121774b47ab44
139712008b2c
144c836679ac
1529767c42c7
hex17915ce0e4

101223031012 has 12 divisors (see below), whose sum is σ = 186463478320. Its totient is φ = 47947751496.

The previous prime is 101223031009. The next prime is 101223031051. The reversal of 101223031012 is 210130322101.

101223031012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1012230310122 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665940918 + ... + 665941069.

Almost surely, 2101223031012 is an apocalyptic number.

It is an amenable number.

101223031012 is a deficient number, since it is larger than the sum of its proper divisors (85240447308).

101223031012 is a wasteful number, since it uses less digits than its factorization.

101223031012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331882010 (or 1331882008 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 101223031012 its reverse (210130322101), we get a palindrome (311353353113).

The spelling of 101223031012 in words is "one hundred one billion, two hundred twenty-three million, thirty-one thousand, twelve".

Divisors: 1 2 4 19 38 76 1331881987 2663763974 5327527948 25305757753 50611515506 101223031012