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321012122003130 = 2351961731016912437
BaseRepresentation
bin100100011111101010111010…
…1100000000010011010111010
31120002121110101201112002011210
41020333111311200002122322
5314033430311213100010
63054422533305303550
7124421234431551015
oct11077256540023272
91502543351462153
10321012122003130
1193314527113858
1230006372194bb6
1310a1740c1947ac
14593b0d8dd637c
15271a3de27ab20
hex123f5758026ba

321012122003130 has 256 divisors, whose sum is σ = 835713478771200. Its totient is φ = 78661548195840.

The previous prime is 321012122003129. The next prime is 321012122003159. The reversal of 321012122003130 is 31300221210123.

It is a junction number, because it is equal to n+sod(n) for n = 321012122003097 and 321012122003106.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 25811051272 + ... + 25811063708.

It is an arithmetic number, because the mean of its divisors is an integer number (3264505776450).

Almost surely, 2321012122003130 is an apocalyptic number.

321012122003130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 321012122003130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417856739385600).

321012122003130 is an abundant number, since it is smaller than the sum of its proper divisors (514701356768070).

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

321012122003130 is a wasteful number, since it uses less digits than its factorization.

321012122003130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22769.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 321012122003130 its reverse (31300221210123), we get a palindrome (352312343213253).

The spelling of 321012122003130 in words is "three hundred twenty-one trillion, twelve billion, one hundred twenty-two million, three thousand, one hundred thirty".