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1001312131210 = 25475873629389
BaseRepresentation
bin11101001001000101101…
…10101001100010001010
310112201120011102121010021
432210202312221202022
5112401141401144320
62043555122011054
7132225306453316
oct16444266514212
93481504377107
101001312131210
11356721659556
121420894a6a8a
1373567090441
143666c804b46
151b0a6a50daa
hexe922da988a

1001312131210 has 32 divisors (see below), whose sum is σ = 1843846260480. Its totient is φ = 391335131712.

The previous prime is 1001312131153. The next prime is 1001312131229. The reversal of 1001312131210 is 121312131001.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1538805 + ... + 2090584.

It is an arithmetic number, because the mean of its divisors is an integer number (57620195640).

Almost surely, 21001312131210 is an apocalyptic number.

1001312131210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001312131210 is a deficient number, since it is larger than the sum of its proper divisors (842534129270).

1001312131210 is a wasteful number, since it uses less digits than its factorization.

1001312131210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3630030.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1001312131210 its reverse (121312131001), we get a palindrome (1122624262211).

The spelling of 1001312131210 in words is "one trillion, one billion, three hundred twelve million, one hundred thirty-one thousand, two hundred ten".

Divisors: 1 2 5 10 47 94 235 470 587 1174 2935 5870 27589 55178 137945 275890 3629389 7258778 18146945 36293890 170581283 341162566 852906415 1705812830 2130451343 4260902686 10652256715 21304513430 100131213121 200262426242 500656065605 1001312131210