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1312203401210 = 251318615423897
BaseRepresentation
bin10011000110000101011…
…010101110011111111010
311122110000201012110120202
4103012011122232133322
5132444343032314320
62442452400522202
7163542423606512
oct23060532563772
94573021173522
101312203401210
1146655867a139
12192392320362
13969814373c0
14477221d2842
1524200472b75
hex131856ae7fa

1312203401210 has 32 divisors (see below), whose sum is σ = 2545023115152. Its totient is φ = 484245434880.

The previous prime is 1312203401153. The next prime is 1312203401213. The reversal of 1312203401210 is 121043022131.

It can be written as a sum of positive squares in 8 ways, for example, as 203371235089 + 1108832166121 = 450967^2 + 1053011^2 .

It is a super-2 number, since 2×13122034012102 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312203401213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2470019 + ... + 2953878.

Almost surely, 21312203401210 is an apocalyptic number.

1312203401210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312203401210 is a deficient number, since it is larger than the sum of its proper divisors (1232819713942).

1312203401210 is a wasteful number, since it uses less digits than its factorization.

1312203401210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5425778.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1312203401210 its reverse (121043022131), we get a palindrome (1433246423341).

The spelling of 1312203401210 in words is "one trillion, three hundred twelve billion, two hundred three million, four hundred one thousand, two hundred ten".

Divisors: 1 2 5 10 13 26 65 130 1861 3722 9305 18610 24193 48386 120965 241930 5423897 10847794 27119485 54238970 70510661 141021322 352553305 705106610 10093872317 20187744634 50469361585 100938723170 131220340121 262440680242 656101700605 1312203401210