Search a number
-
+
31320030333113 is a prime number
BaseRepresentation
bin1110001111100010000110…
…10010000100100010111001
311002220011110202122120011122
413013301003102010202321
513101121410231124423
6150340120122235025
76411540356161334
oct707610322044271
9132804422576148
1031320030333113
119a8582867aa55
12361a046955a75
13146260a2a1ab2
147a3c7cc7561b
15394a8c45c8c8
hex1c7c434848b9

31320030333113 has 2 divisors, whose sum is σ = 31320030333114. Its totient is φ = 31320030333112.

The previous prime is 31320030333107. The next prime is 31320030333131. The reversal of 31320030333113 is 31133303002313.

It is a happy number.

Together with next prime (31320030333131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23860997491984 + 7459032841129 = 4884772^2 + 2731123^2 .

It is a cyclic number.

It is not a de Polignac number, because 31320030333113 - 212 = 31320030329017 is a prime.

It is a super-3 number, since 3×313200303331133 (a number of 41 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (31320030333103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15660015166556 + 15660015166557.

It is an arithmetic number, because the mean of its divisors is an integer number (15660015166557).

Almost surely, 231320030333113 is an apocalyptic number.

It is an amenable number.

31320030333113 is a deficient number, since it is larger than the sum of its proper divisors (1).

31320030333113 is an equidigital number, since it uses as much as digits as its factorization.

31320030333113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 26.

Adding to 31320030333113 its reverse (31133303002313), we get a palindrome (62453333335426).

The spelling of 31320030333113 in words is "thirty-one trillion, three hundred twenty billion, thirty million, three hundred thirty-three thousand, one hundred thirteen".