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1031210323201 = 9771055486513
BaseRepresentation
bin11110000000110001110…
…11001100110100000001
310122120201211011010011101
433000120323030310001
5113343404320320301
62105422000014401
7134334232056652
oct17003073146401
93576654133141
101031210323201
11368374386733
12147a32301401
137632032aac6
1437ca750b529
151bc56769701
hexf018eccd01

1031210323201 has 4 divisors (see below), whose sum is σ = 1032265810692. Its totient is φ = 1030154835712.

The previous prime is 1031210323193. The next prime is 1031210323217. The reversal of 1031210323201 is 1023230121301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 854515360000 + 176694963201 = 924400^2 + 420351^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031210323201 - 23 = 1031210323193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031210323261) 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 3 ways as a sum of consecutive naturals, for example, 527742280 + ... + 527744233.

It is an arithmetic number, because the mean of its divisors is an integer number (258066452673).

Almost surely, 21031210323201 is an apocalyptic number.

It is an amenable number.

1031210323201 is a deficient number, since it is larger than the sum of its proper divisors (1055487491).

1031210323201 is an equidigital number, since it uses as much as digits as its factorization.

1031210323201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055487490.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1031210323201 its reverse (1023230121301), we get a palindrome (2054440444502).

The spelling of 1031210323201 in words is "one trillion, thirty-one billion, two hundred ten million, three hundred twenty-three thousand, two hundred one".

Divisors: 1 977 1055486513 1031210323201