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3131212200001 = 6151331347541
BaseRepresentation
bin101101100100001010110…
…010100111100001000001
3102002100012120011122212021
4231210022302213201001
5402300210310400001
610354243052201441
7442136233361164
oct55441262474101
912070176148767
103131212200001
11aa7a37724696
12426a24769281
1319936c8aac32
14ab7a1389adb
15566b3c02ba1
hex2d90aca7841

3131212200001 has 4 divisors (see below), whose sum is σ = 3182543547604. Its totient is φ = 3079880852400.

The previous prime is 3131212199989. The next prime is 3131212200013. The reversal of 3131212200001 is 1000022121313.

3131212200001 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (3131212199989) and next prime (3131212200013).

It can be written as a sum of positive squares in 2 ways, for example, as 1210352025600 + 1920860174401 = 1100160^2 + 1385951^2 .

It is a cyclic number.

It is not a de Polignac number, because 3131212200001 - 27 = 3131212199873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3131212203001) 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, 25665673710 + ... + 25665673831.

It is an arithmetic number, because the mean of its divisors is an integer number (795635886901).

Almost surely, 23131212200001 is an apocalyptic number.

It is an amenable number.

3131212200001 is a deficient number, since it is larger than the sum of its proper divisors (51331347603).

3131212200001 is an equidigital number, since it uses as much as digits as its factorization.

3131212200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51331347602.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 3131212200001 its reverse (1000022121313), we get a palindrome (4131234321314).

The spelling of 3131212200001 in words is "three trillion, one hundred thirty-one billion, two hundred twelve million, two hundred thousand, one".

Divisors: 1 61 51331347541 3131212200001