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1020032221231 = 3159659551539
BaseRepresentation
bin11101101011111101010…
…10001000000000101111
310121111212210120200221201
432311332222020000233
5113203011222034411
62100332450310331
7133460230552252
oct16657652100057
93544783520851
101020032221231
11363658662231
121458328883a7
137525b54549a
1437526b19099
151b8002493c1
hexed7ea8802f

1020032221231 has 8 divisors (see below), whose sum is σ = 1052956044800. Its totient is φ = 987109620120.

The previous prime is 1020032221217. The next prime is 1020032221249. The reversal of 1020032221231 is 1321222300201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020032221231 - 221 = 1020030124079 is a prime.

It is a super-2 number, since 2×10200322212312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020032221199 and 1020032221208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020032221031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1573660 + ... + 2125198.

It is an arithmetic number, because the mean of its divisors is an integer number (131619505600).

Almost surely, 21020032221231 is an apocalyptic number.

1020032221231 is a deficient number, since it is larger than the sum of its proper divisors (32923823569).

1020032221231 is an equidigital number, since it uses as much as digits as its factorization.

1020032221231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611229.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1020032221231 its reverse (1321222300201), we get a palindrome (2341254521432).

The spelling of 1020032221231 in words is "one trillion, twenty billion, thirty-two million, two hundred twenty-one thousand, two hundred thirty-one".

Divisors: 1 31 59659 551539 1849429 17097709 32904265201 1020032221231