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10312122312121 = 76674212207243
BaseRepresentation
bin1001011000001111101001…
…1000110010010110111001
31100111211101112102112121111
42112003322120302112321
52322423211302441441
633533153521240321
72113012001254540
oct226037230622671
940454345375544
1010312122312121
11331638a232893
1211a6684a930a1
1359a576575086
1427917620b157
1512d396983081
hex960fa6325b9

10312122312121 has 8 divisors (see below), whose sum is σ = 11785305639744. Its totient is φ = 8838944733840.

The previous prime is 10312122312109. The next prime is 10312122312139. The reversal of 10312122312121 is 12121322121301.

It is a happy number.

10312122312121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10312122312121 - 211 = 10312122310073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10312122312092 and 10312122312101.

It is not an unprimeable number, because it can be changed into a prime (10312122312181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3568326 + ... + 5775568.

It is an arithmetic number, because the mean of its divisors is an integer number (1473163204968).

Almost surely, 210312122312121 is an apocalyptic number.

It is an amenable number.

10312122312121 is a deficient number, since it is larger than the sum of its proper divisors (1473183327623).

10312122312121 is an equidigital number, since it uses as much as digits as its factorization.

10312122312121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874671.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 10312122312121 its reverse (12121322121301), we get a palindrome (22433444433422).

The spelling of 10312122312121 in words is "ten trillion, three hundred twelve billion, one hundred twenty-two million, three hundred twelve thousand, one hundred twenty-one".

Divisors: 1 7 667421 2207243 4671947 15450701 1473160330303 10312122312121