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101312312013 = 32112345499781
BaseRepresentation
bin101111001011010101…
…1110011001011001101
3100200111121222200220100
41132112223303023031
53124441422441023
6114313042241313
710214420305023
oct1362653631315
9320447880810
10101312312013
1139a6a182590
1217775356239
139727668723
144c91468713
15297e55cc43
hex1796af32cd

101312312013 has 48 divisors (see below), whose sum is σ = 166638326400. Its totient is φ = 58712860800.

The previous prime is 101312311979. The next prime is 101312312033. The reversal of 101312312013 is 310213213101.

It is not a de Polignac number, because 101312312013 - 26 = 101312311949 is a prime.

It is a super-2 number, since 2×1013123120132 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101312312033) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10353183 + ... + 10362963.

It is an arithmetic number, because the mean of its divisors is an integer number (3471631800).

Almost surely, 2101312312013 is an apocalyptic number.

It is an amenable number.

101312312013 is a deficient number, since it is larger than the sum of its proper divisors (65326014387).

101312312013 is a wasteful number, since it uses less digits than its factorization.

101312312013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14370 (or 14367 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 101312312013 its reverse (310213213101), we get a palindrome (411525525114).

The spelling of 101312312013 in words is "one hundred one billion, three hundred twelve million, three hundred twelve thousand, thirteen".

Divisors: 1 3 9 11 23 33 69 99 207 253 759 2277 4549 9781 13647 29343 40941 50039 88029 104627 107591 150117 224963 313881 322773 450351 674889 941643 968319 1150897 2024667 2474593 3452691 7423779 10358073 22271337 44493769 133481307 400443921 489431459 1023356687 1468294377 3070070061 4404883131 9210210183 11256923557 33770770671 101312312013