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31344324132001 = 229136874777869
BaseRepresentation
bin1110010000001111010110…
…10011100011110010100001
311002222111011211201102011211
413020013223103203302201
513102021133434211001
6150355214514510121
76413360400103336
oct710075323436241
9132874154642154
1031344324132001
119a950649116a1
1236228a6895341
1314649ac40751a
147a510550c98d
15395510135351
hex1c81eb4e3ca1

31344324132001 has 4 divisors (see below), whose sum is σ = 31481198910100. Its totient is φ = 31207449353904.

The previous prime is 31344324131999. The next prime is 31344324132013. The reversal of 31344324132001 is 10023142344313.

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 27529329985600 + 3814994146401 = 5246840^2 + 1953201^2 .

It is a cyclic number.

It is not a de Polignac number, because 31344324132001 - 21 = 31344324131999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31344324132061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68437388706 + ... + 68437389163.

It is an arithmetic number, because the mean of its divisors is an integer number (7870299727525).

Almost surely, 231344324132001 is an apocalyptic number.

It is an amenable number.

31344324132001 is a deficient number, since it is larger than the sum of its proper divisors (136874778099).

31344324132001 is a wasteful number, since it uses less digits than its factorization.

31344324132001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136874778098.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 31344324132001 its reverse (10023142344313), we get a palindrome (41367466476314).

The spelling of 31344324132001 in words is "thirty-one trillion, three hundred forty-four billion, three hundred twenty-four million, one hundred thirty-two thousand, one".

Divisors: 1 229 136874777869 31344324132001