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311422241321 = 3771280142323
BaseRepresentation
bin1001000100000100011…
…01100100101000101001
31002202211112220000011222
410202002031210220221
520100243043210241
6355022043231425
731333222242422
oct4420215445051
91082745800158
10311422241321
11110089811264
1250432818575
13234a0384199
1411104126649
15817a356a4b
hex4882364a29

311422241321 has 16 divisors (see below), whose sum is σ = 324467296128. Its totient is φ = 298624032000.

The previous prime is 311422241309. The next prime is 311422241363. The reversal of 311422241321 is 123142224113.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 311422241321 - 214 = 311422224937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311422241371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7337066 + ... + 7379388.

It is an arithmetic number, because the mean of its divisors is an integer number (20279206008).

Almost surely, 2311422241321 is an apocalyptic number.

It is an amenable number.

311422241321 is a deficient number, since it is larger than the sum of its proper divisors (13045054807).

311422241321 is a wasteful number, since it uses less digits than its factorization.

311422241321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45232.

The product of its digits is 2304, while the sum is 26.

Adding to 311422241321 its reverse (123142224113), we get a palindrome (434564465434).

The spelling of 311422241321 in words is "three hundred eleven billion, four hundred twenty-two million, two hundred forty-one thousand, three hundred twenty-one".

Divisors: 1 37 71 2627 2801 42323 103637 198871 1565951 3004933 7358227 111182521 118546723 4386228751 8416817333 311422241321