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112031003221 = 1773109828209
BaseRepresentation
bin110100001010110010…
…0010111001001010101
3101201011122002122000121
41220111210113021111
53313414414100341
6123244421111541
711044142546434
oct1502544271125
9351148078017
10112031003221
114356a642975
1219866b585b1
13a74520aa67
1455cac2d11b
152daa5814d1
hex1a15917255

112031003221 has 16 divisors (see below), whose sum is σ = 121349329200. Its totient is φ = 103042326528.

The previous prime is 112031003219. The next prime is 112031003237. The reversal of 112031003221 is 122300130211.

It can be written as a sum of positive squares in 8 ways, for example, as 1215916900 + 110815086321 = 34870^2 + 332889^2 .

It is a cyclic number.

It is not a de Polignac number, because 112031003221 - 21 = 112031003219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112031003195 and 112031003204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112031003251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278836 + ... + 549373.

It is an arithmetic number, because the mean of its divisors is an integer number (7584333075).

Almost surely, 2112031003221 is an apocalyptic number.

It is an amenable number.

112031003221 is a deficient number, since it is larger than the sum of its proper divisors (9318325979).

112031003221 is a wasteful number, since it uses less digits than its factorization.

112031003221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828408.

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

Adding to 112031003221 its reverse (122300130211), we get a palindrome (234331133432).

The spelling of 112031003221 in words is "one hundred twelve billion, thirty-one million, three thousand, two hundred twenty-one".

Divisors: 1 17 73 109 1241 1853 7957 135269 828209 14079553 60459257 90274781 1027807369 1534671277 6590059013 112031003221